Use the ``.Rv -std'' mdoc(7) macro in appropriate cases.

Reviewed by:	ru

lib/libc/compat-43/killpg.2

@@ -66,10 +66,7 @@ the sender must be the super-user.
 As a single special case the continue signal SIGCONT may be sent
 to any process that is a descendant of the current process.
 .Sh RETURN VALUES
-Upon successful completion, a value of 0 is returned.  Otherwise,
+.Rv -std killpg
-a value of -1 is returned and the global variable
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Fn Killpg
 will fail and no signal will be sent if:

lib/libc/compat-43/sigvec.2

@@ -256,10 +256,7 @@ flag is not available in
 .Bx 4.2 ,
 hence it should not be used if backward compatibility is needed.
 .Sh RETURN VALUES
-A 0 value indicated that the call succeeded.  A \-1 return value
+.Rv -std sigvec
-indicates an error occurred and
-.Va errno
-is set to indicated the reason.
 .Sh ERRORS
 .Fn Sigvec
 will fail and no new signal handler will be installed if one

lib/libc/gen/msgctl.3

@@ -166,11 +166,7 @@ effective gid can match either
 or
 .Va msg_perm.gid .
 .Sh RETURN VALUES
-Upon successful completion, a value of 0 is returned.
+.Rv -std msgctl
-Otherwise, -1 is
-returned and the global variable
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Fn msgctl
 will fail if:

lib/libc/gen/msgsnd.3

@@ -121,10 +121,7 @@ is set to the pid of the calling process.
 is set to the current time.
 .El
 .Sh RETURN VALUES
-Upon successful completion, 0 is returned.
+.Rv -std msgsnd
-Otherwise, -1 is returned and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Fn msgsnd
 will fail if:

lib/libc/gen/raise.3

@@ -55,10 +55,7 @@ function sends the signal
 .Fa sig
 to the current process.
 .Sh RETURN VALUES
-Upon successful completion, a value of 0 is returned.
+.Rv -std raise
-Otherwise, a value of \-1 is returned and the global variable
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 The
 .Fn raise

lib/libc/gen/sem_destroy.3

@@ -49,12 +49,7 @@ After a successful call to
 is unuseable until re-initialized by another call to
 .Fn sem_init .
 .Sh RETURN VALUES
-If successful,
+.Rv -std sem_destroy
-.Fn sem_destroy
-returns 0.  Otherwise, -1 is returned and
-.Va errno
-is set to indicate the type of
-error.
 .Sh ERRORS
 .Fn sem_destroy
 will fail if:

lib/libc/gen/sem_getvalue.3

@@ -49,12 +49,7 @@ as of the time that the call to
 .Fn sem_getvalue
 is actually run.
 .Sh RETURN VALUES
-If successful,
+.Rv -std sem_getvalue
-.Fn sem_getvalue
-returns 0.  Otherwise, -1 is returned and
-.Va errno
-is set to indicate the type of
-error.
 .Sh ERRORS
 .Fn sem_getvalue
 will fail if:

lib/libc/gen/sem_init.3

@@ -63,12 +63,7 @@ and
 is no longer valid after a successful call to
 .Fa sem_destroy .
 .Sh RETURN VALUES
-If successful,
+.Rv -std sem_init
-.Fn sem_init
-returns 0.  Otherwise, -1 is returned and
-.Va errno
-is set to indicate the type of
-error.
 .Sh ERRORS
 .Fn sem_init
 will fail if:

lib/libc/gen/sem_post.3

@@ -52,12 +52,7 @@ the semaphore will be allowed to return from
 .Fn sem_post
 is signal-reentrant and may be called within signal handlers.
 .Sh RETURN VALUES
-If successful,
+.Rv -std sem_post
-.Fn sem_post
-returns 0.  Otherwise, -1 is returned and
-.Va errno
-is set to indicate the type of
-error.
 .Sh ERRORS
 .Fn sem_post
 will fail if:

lib/libc/gen/uname.3

@@ -69,11 +69,7 @@ Version level of the operating system.
 Machine hardware platform.
 .El
 .Sh RETURN VALUES
-If
+.Rv -std uname
-.Fn uname
-is successful, 0 is returned, otherwise, -1 is returned and
-.Va errno
-is set appropriately.
 .Sh ERRORS
 The
 .Fn uname

lib/libc/i386/sys/i386_vm86.2

@@ -78,13 +78,7 @@ with the correct machine context for vm86, and with the
 .Em PSL_VM
 bit set.  Control returns to the process upon delivery of a signal.
 .Sh RETURN VALUES
-Upon successful completion,
+.Rv -std i386_vm86
-.Fn i386_vm86
-will return the value of 0.
-Otherwise, a value of -1 is returned and the global
-variable
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Fn i386_vm86
 will fail if:

lib/libc/posix1e/acl_free.3

@@ -50,10 +50,7 @@ or
 support for POSIX.1e interfaces and features is still under
 development at this time.
 .Sh RETURN VALUES
-In the event of success, 0 is returned.  In the event of failure, -1 is
+.Rv -std acl_free
-returned, and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 If any of the following conditions occur, the
 .Fn acl_free

lib/libc/posix1e/cap_clear.3

@@ -52,10 +52,7 @@ implementation shall be cleared.
 support for POSIX.1e interfaces and features is still under
 development at this time.
 .Sh RETURN VALUES
-Upon successful completion, the function shall return a value of zero.
+.Rv -std cap_clear
-Otherwise, a value of -1 shall be returned and
-.Va errno
-shall be set to indicate the error.
 .Sh ERRORS
 If any of the following conditions occur, the
 .Fn cap_clear

lib/libc/posix1e/cap_free.3

@@ -57,10 +57,7 @@ function.
 support for POSIX.1e interfaces and features is still under
 development at this time.
 .Sh RETURN VALUES
-Upon successful completion, the function shall return a value of zero.
+.Rv -std cap_free
-Otherwise, a value of -1 shall be returned and
-.Va errno
-set to indicate the error.
 .Sh ERRORS
 If any of the following conditions occur, the
 .Fn cap_free

lib/libc/posix1e/cap_get_flag.3

@@ -56,10 +56,7 @@ and place it into the location pointed to by
 support for POSIX.1e interfaces and features is still under
 development at this time.
 .Sh RETURN VALUES
-Upon successful completion, the function shall return a value of zero.
+.Rv -std cap_get_flag
-Otherwise, a value of -1 shall be returned and
-.Va errno
-set to indicate the error.
 .Sh ERRORS
 If any of the following conditions occur, the
 .Fn cap_get_flag

lib/libc/stdio/remove.3

@@ -63,12 +63,7 @@ is the equivalent of
 Otherwise, it is the equivalent of
 .Fn unlink "path" .
 .Sh RETURN VALUES
-Upon successful completion,
+.Rv -std remove
-.Fn remove
-returns 0.
-Otherwise, \-1 is returned and the global variable
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 The
 .Fn remove

lib/libc/stdlib/radixsort.3

@@ -108,10 +108,7 @@ These functions are variants of most-significant-byte radix sorting; in
 particular, see D.E. Knuth's Algorithm R and section 5.2.5, exercise 10.
 They take linear time relative to the number of bytes in the strings.
 .Sh RETURN VALUES
-Upon successful completion 0 is returned.
+.Rv -std radixsort
-Otherwise, \-1 is returned and the global variable
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Bl -tag -width Er
 .It Bq Er EINVAL

lib/libc/sys/adjtime.2

@@ -84,10 +84,7 @@ The call
 .Fn adjtime
 is restricted to the super-user.
 .Sh RETURN VALUES
-A return value of 0 indicates that the call succeeded.
+.Rv -std adjtime
-A return value of -1 indicates that an error occurred, and in this
-case an error code is stored in the global variable
-.Va errno .
 .Sh ERRORS
 .Fn Adjtime
 will fail if:

lib/libc/sys/bind.2

@@ -86,10 +86,7 @@ Before returning,
 unlocks
 .Fa s .
 .Sh RETURN VALUES
-If the bind is successful, a 0 value is returned.
+.Rv -std bind
-A return value of -1 indicates an error, which is
-further specified in the global
-.Va errno .
 .Sh ERRORS
 The
 .Fn bind

lib/libc/sys/close.2

@@ -123,10 +123,7 @@ Before returning,
 unlocks
 .Fa d .
 .Sh RETURN VALUES
-Upon successful completion, a value of 0 is returned.
+.Rv -std close
-Otherwise, a value of -1 is returned and the global integer variable
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Fn Close
 will fail if:

lib/libc/sys/connect.2

@@ -96,10 +96,7 @@ Before returning,
 unlocks
 .Va s .
 .Sh RETURN VALUES
-If the connection or binding succeeds, 0 is returned.
+.Rv -std connect
-Otherwise a -1 is returned, and a more specific error
-code is stored in
-.Va errno .
 .Sh ERRORS
 The
 .Fn connect

lib/libc/sys/flock.2

@@ -134,10 +134,7 @@ Before returning,
 unlocks
 .Fa fd .
 .Sh RETURN VALUES
-Zero is returned if the operation was successful;
+.Rv -std flock
-on an error a -1 is returned and an error code is left in
-the global location
-.Va errno .
 .Sh ERRORS
 The
 .Fn flock

lib/libc/sys/fsync.2

@@ -78,8 +78,7 @@ Before returning,
 unlocks
 .Fa fd .
 .Sh RETURN VALUES
-A 0 value is returned on success.  A -1 value indicates
+.Rv -std fsync
-an error.
 .Sh ERRORS
 The
 .Fn fsync

lib/libc/sys/getfh.2

@@ -52,10 +52,7 @@ in the file handle pointed to by
 .Fa fhp .
 This system call is restricted to the superuser.
 .Sh RETURN VALUES
-Upon successful completion, a value of 0 is returned.
+.Rv -std getfh
-Otherwise, -1 is returned and the global variable
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Fn Getfh
 fails if one or more of the following are true:

lib/libc/sys/getpeername.2

@@ -80,7 +80,7 @@ Before returning,
 unlocks
 .Fa s .
 .Sh RETURN VALUES
-A 0 is returned if the call succeeds, -1 if it fails.
+.Rv -std getpeername
 .Sh ERRORS
 The call succeeds unless:
 .Bl -tag -width Er

lib/libc/sys/getrusage.2

@@ -152,11 +152,7 @@ account only for real
 I/O; data supplied by the caching mechanism is charged only
 to the first process to read or write the data.
 .Sh RETURN VALUES
-Upon successful completion,
+.Rv -std getrusage
-.Fn getrusage
-returns 0.  Otherwise, a value of -1 is returned and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 The
 .Fn getrusage

lib/libc/sys/getsockname.2

@@ -78,7 +78,7 @@ Before returning,
 unlocks
 .Fa fd .
 .Sh RETURN VALUES
-A 0 is returned if the call succeeds, -1 if it fails.
+.Rv -std getsockname
 .Sh ERRORS
 The call succeeds unless:
 .Bl -tag -width Er

lib/libc/sys/kill.2

@@ -106,10 +106,7 @@ is equal to the absolute value of the process number.
 This is a variant of
 .Xr killpg 2 .
 .Sh RETURN VALUES
-Upon successful completion, a value of 0 is returned.
+.Rv -std kill
-Otherwise, a value of -1 is returned and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Fn Kill
 will fail and no signal will be sent if:

lib/libc/sys/ktrace.2

@@ -135,10 +135,7 @@ The type specific records are defined in the
 .Aq Pa sys/ktrace.h
 include file.
 .Sh RETURN VALUES
-On successful completion a value of 0 is returned.
+.Rv -std ktrace
-Otherwise, a value of -1 is returned and
-.Va errno
-is set to show the error.
 .Sh ERRORS
 .Fn Ktrace
 will fail if:

lib/libc/sys/link.2

@@ -80,10 +80,7 @@ must be in the same file system.
 .Fa name1
 may not be a directory.
 .Sh RETURN VALUES
-Upon successful completion, a value of 0 is returned.  Otherwise,
+.Rv -std link
-a value of -1 is returned and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Fn Link
 will fail and no link will be created if:

lib/libc/sys/listen.2

@@ -107,7 +107,7 @@ Before returning,
 unlocks
 .Fa s .
 .Sh RETURN VALUES
-A 0 return value indicates success; -1 indicates an error.
+.Rv -std listen
 .Sh ERRORS
 .Fn Listen
 will fail if:

lib/libc/sys/madvise.2

@@ -133,11 +133,7 @@ Region is not included in a core file.
 Include region in a core file.
 .El
 .Sh RETURN VALUES
-Upon successful completion,
+.Rv -std madvise
-.Fn madvise
-returns 0.  Otherwise a value of -1 is returned and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 The
 .Fn madvise

lib/libc/sys/minherit.2

@@ -56,11 +56,7 @@ Not all implementations will guarantee that the inheritance characteristic
 can be set on a page basis;
 the granularity of changes may be as large as an entire region.
 .Sh RETURN VALUES
-Upon successful completion,
+.Rv -std minherit
-.Fn minherit
-returns 0.  Otherwise, a value of -1 is returned and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 The
 .Fn minherit

lib/libc/sys/mkdir.2

@@ -58,9 +58,7 @@ The directory's owner ID is set to the process's effective user ID.
 The directory's group ID is set to that of the parent directory in
 which it is created.
 .Sh RETURN VALUES
-A 0 return value indicates success.  A -1 return value
+.Rv -std mkdir
-indicates an error, and an error code is stored in
-.Va errno .
 .Sh ERRORS
 .Fn Mkdir
 will fail and no directory will be created if:

lib/libc/sys/mkfifo.2

@@ -60,9 +60,7 @@ The fifo's owner ID is set to the process's effective user ID.
 The fifo's group ID is set to that of the parent directory in
 which it is created.
 .Sh RETURN VALUES
-A 0 return value indicates success.  A -1 return value
+.Rv -std mkfifo
-indicates an error, and an error code is stored in
-.Va errno .
 .Sh ERRORS
 .Fn Mkfifo
 will fail and no fifo will be created if:

lib/libc/sys/mknod.2

@@ -64,10 +64,7 @@ is ignored.
 .Fn Mknod
 requires super-user privileges.
 .Sh RETURN VALUES
-Upon successful completion a value of 0 is returned.
+.Rv -std mknod
-Otherwise, a value of -1 is returned and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Fn Mknod
 will fail and the file will be not created if:

lib/libc/sys/mprotect.2

@@ -54,12 +54,7 @@ changes the specified pages to have protection
 Not all implementations will guarantee protection on a page basis;
 the granularity of protection changes may be as large as an entire region.
 .Sh RETURN VALUES
-Upon successful completion,
+.Rv -std mprotect
-.Fn mprotect
-returns 0.  Otherwise a value of -1 is returned
-and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 The
 .Fn mprotect

lib/libc/sys/msync.2

@@ -72,9 +72,7 @@ MS_SYNC		Perform synchronous writes
 MS_INVALIDATE	Invalidate all cached data
 .Ed
 .Sh RETURN VALUES
-If any errors occur, -1 is returned and errno is set to indicate the
+.Rv -std msync
-error.
-Otherwise, a 0 value is returned.
 .Sh ERRORS
 .Fn msync
 will fail if:

lib/libc/sys/munmap.2

@@ -53,12 +53,7 @@ deletes the mappings for the specified address range,
 and causes further references to addresses within the range
 to generate invalid memory references.
 .Sh RETURN VALUES
-Upon successful completion,
+.Rv -std munmap
-.Fn munmap
-returns zero.
-Otherwise, a value of -1 is returned and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Fn Munmap
 will fail if:

lib/libc/sys/pipe.2

@@ -88,12 +88,7 @@ portable to older systems, so it is recommended to use the convention
 for using the endpoints in the traditional manner when using a
 pipe in one direction.
 .Sh RETURN VALUES
-On successful creation of the pipe, zero is returned.
+.Rv -std pipe
-Otherwise,
-a value of -1 is returned and the variable
-.Va errno
-set to indicate the
-error.
 .Sh ERRORS
 The
 .Fn pipe

lib/libc/sys/quotactl.2

@@ -151,10 +151,7 @@ and
 parameters are ignored.
 .El
 .Sh RETURN VALUES
-A successful call returns 0,
+.Rv -std quotactl
-otherwise the value -1 is returned and the global variable
-.Va errno
-indicates the reason for the failure.
 .Sh ERRORS
 A
 .Fn quotactl

lib/libc/sys/rename.2

@@ -98,11 +98,7 @@ not the file or directory to which it points.
 .\"Hard links to directories should be
 .\"replaced by symbolic links by the system administrator.
 .Sh RETURN VALUES
-A 0 value is returned if the operation succeeds, otherwise
+.Rv -std rename
-.Fn rename
-returns -1 and the global variable
-.Va errno
-indicates the reason for the failure.
 .Sh ERRORS
 .Fn Rename
 will fail and neither of the argument files will be

lib/libc/sys/revoke.2

@@ -73,10 +73,7 @@ device files.
 It is normally used to prepare a terminal device for a new login session,
 preventing any access by a previous user of the terminal.
 .Sh RETURN VALUES
-A 0 value indicated that the call succeeded.  A \-1 return value
+.Rv -std revoke
-indicates an error occurred and
-.Va errno
-is set to indicated the reason.
 .Sh ERRORS
 Access to the named file is revoked unless one of the following:
 .Bl -tag -width Er

lib/libc/sys/rmdir.2

@@ -55,9 +55,7 @@ than
 and
 .Ql \&.. .
 .Sh RETURN VALUES
-A 0 is returned if the remove succeeds; otherwise a -1 is
+.Rv -std rmdir
-returned and an error code is stored in the global location
-.Va errno .
 .Sh ERRORS
 The named file is removed unless:
 .Bl -tag -width Er

lib/libc/sys/sched_yield.2

@@ -41,12 +41,7 @@ The
 function forces the running process to relinquish the processor until it
 again becomes the head of its process list.  It takes no arguments.
 .Sh RETURN VALUES
-The
+.Rv -std sched_yield
-.Fn sched_yield
-function will return zero if it completes successfully, or it
-will return a value of -1 and set
-.Va errno
-to indicate the error.
 .Sh ERRORS
 On failure
 .Va errno

lib/libc/sys/semop.2

@@ -163,11 +163,7 @@ for each semaphore is added to the semaphore's value.  This can
 be used to insure that a resource is released if a process terminates
 unexpectedly.
 .Sh RETURN VALUES
-On success,
+.Rv -std semop
-.Fn semop
-returns 0; otherwise, -1 is returned and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Fn Semop
 will fail if:

lib/libc/sys/sendfile.2

@@ -132,11 +132,7 @@ unlocks
 and
 .Fa s .
 .Sh RETURN VALUES
-Upon successful completion,
+.Rv -std sendfile
-.Fn sendfile
-returns 0. Otherwise a -1 is returned and the global variable
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Bl -tag -width Er
 .It Bq Er EBADF

lib/libc/sys/setgroups.2

@@ -60,9 +60,7 @@ as defined in
 .Pp
 Only the super-user may set new groups.
 .Sh RETURN VALUES
-A 0 value is returned on success, -1 on error, with
+.Rv -std setgroups
-an error code stored in
-.Va errno .
 .Sh ERRORS
 The
 .Fn setgroups

lib/libc/sys/setregid.2

@@ -74,10 +74,7 @@ the standard
 .Fn setgid
 function is preferred.
 .Sh RETURN VALUES
-Upon successful completion, a value of 0 is returned.  Otherwise,
+.Rv -std setregid
-a value of -1 is returned and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Bl -tag -width Er
 .It Bq Er EPERM

lib/libc/sys/shmctl.2

@@ -109,11 +109,7 @@ struct shmid_ds {
 };
 .Ed
 .Sh RETURN VALUES
-Upon successful completion,
+.Rv -std shmctl
-.Fn shmctl
-returns 0.  Otherwise, it returns -1 and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Fn Shmctl
 will fail if:

lib/libc/sys/sigaction.2

@@ -448,10 +448,7 @@ This protects against the side effect of
 .Va errno
 being set by functions called from inside the signal handler.
 .Sh RETURN VALUES
-A 0 value indicated that the call succeeded.  A \-1 return value
+.Rv -std sigaction
-indicates an error occurred and
-.Va errno
-is set to indicated the reason.
 .Sh EXAMPLES
 There are three possible prototypes the handler may match:
 .Bl -tag -offset indent -width short

lib/libc/sys/sigaltstack.2

@@ -133,10 +133,7 @@ are not ``grown'' automatically as is done for the normal stack.
 If the stack overflows and this space is not protected
 unpredictable results may occur.
 .Sh RETURN VALUES
-Upon successful completion, a value of 0 is returned.
+.Rv -std sigaltstack
-Otherwise, a value of -1 is returned and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 .Fn Sigaltstack
 will fail and the signal stack context will remain unchanged

lib/libc/sys/sigpending.2

@@ -57,10 +57,7 @@ Signals may be pending because they are currently masked,
 or transiently before delivery (although the latter case is not
 normally detectable).
 .Sh RETURN VALUES
-A 0 value indicated that the call succeeded.  A \-1 return value
+.Rv -std sigpending
-indicates an error occurred and
-.Va errno
-is set to indicated the reason.
 .Sh ERRORS
 .Fn sigpending
 will fail if:

lib/libc/sys/sigprocmask.2

@@ -96,10 +96,7 @@ or
 .Dv SIGSTOP
 to be blocked.
 .Sh RETURN VALUES
-A 0 value indicated that the call succeeded.  A -1 return value
+.Rv -std sigprocmask
-indicates an error occurred and
-.Va errno
-is set to indicated the reason.
 .Sh ERRORS
 The
 .Fn sigprocmask

lib/libc/sys/socketpair.2

@@ -62,7 +62,7 @@ and
 .Fa sv Ns [1] .
 The two sockets are indistinguishable.
 .Sh RETURN VALUES
-A 0 is returned if the call succeeds, -1 if it fails.
+.Rv -std socketpair
 .Sh ERRORS
 The call succeeds unless:
 .Bl -tag -width Er

lib/libc/sys/symlink.2

@@ -58,10 +58,7 @@ used in creating the symbolic link).
 Either name may be an arbitrary path name; the files need not
 be on the same file system.
 .Sh RETURN VALUES
-Upon successful completion, a zero value is returned.
+.Rv -std symlink
-If an error occurs, the error code is stored in
-.Va errno
-and a -1 value is returned.
 .Sh ERRORS
 The symbolic link succeeds unless:
 .Bl -tag -width Er

lib/libc/sys/undelete.2

@@ -61,10 +61,7 @@ Eventually, the
 functionality may be expanded to other filesystems able to recover
 deleted files such as the log-structured filesystem.
 .Sh RETURN VALUES
-Upon successful completion, a value of 0 is returned.
+.Rv -std undelete
-Otherwise, a value of -1 is returned and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 The
 .Fn undelete

lib/libc/sys/unlink.2

@@ -62,10 +62,7 @@ all references to it have been closed.
 .Fa path
 may not be a directory.
 .Sh RETURN VALUES
-Upon successful completion, a value of 0 is returned.
+.Rv -std unlink
-Otherwise, a value of -1 is returned and
-.Va errno
-is set to indicate the error.
 .Sh ERRORS
 The
 .Fn unlink

lib/libc_r/man/sem_destroy.3

@@ -49,12 +49,7 @@ After a successful call to
 is unuseable until re-initialized by another call to
 .Fn sem_init .
 .Sh RETURN VALUES
-If successful,
+.Rv -std sem_destroy
-.Fn sem_destroy
-returns 0.  Otherwise, -1 is returned and
-.Va errno
-is set to indicate the type of
-error.
 .Sh ERRORS
 .Fn sem_destroy
 will fail if:

lib/libc_r/man/sem_getvalue.3

@@ -49,12 +49,7 @@ as of the time that the call to
 .Fn sem_getvalue
 is actually run.
 .Sh RETURN VALUES
-If successful,
+.Rv -std sem_getvalue
-.Fn sem_getvalue
-returns 0.  Otherwise, -1 is returned and
-.Va errno
-is set to indicate the type of
-error.
 .Sh ERRORS
 .Fn sem_getvalue
 will fail if:

lib/libc_r/man/sem_init.3

@@ -63,12 +63,7 @@ and
 is no longer valid after a successful call to
 .Fa sem_destroy .
 .Sh RETURN VALUES
-If successful,
+.Rv -std sem_init
-.Fn sem_init
-returns 0.  Otherwise, -1 is returned and
-.Va errno
-is set to indicate the type of
-error.
 .Sh ERRORS
 .Fn sem_init
 will fail if:

lib/libc_r/man/sem_post.3

@@ -52,12 +52,7 @@ the semaphore will be allowed to return from
 .Fn sem_post
 is signal-reentrant and may be called within signal handlers.
 .Sh RETURN VALUES
-If successful,
+.Rv -std sem_post
-.Fn sem_post
-returns 0.  Otherwise, -1 is returned and
-.Va errno
-is set to indicate the type of
-error.
 .Sh ERRORS
 .Fn sem_post
 will fail if:

lib/libpthread/man/sem_destroy.3

@@ -49,12 +49,7 @@ After a successful call to
 is unuseable until re-initialized by another call to
 .Fn sem_init .
 .Sh RETURN VALUES
-If successful,
+.Rv -std sem_destroy
-.Fn sem_destroy
-returns 0.  Otherwise, -1 is returned and
-.Va errno
-is set to indicate the type of
-error.
 .Sh ERRORS
 .Fn sem_destroy
 will fail if:

lib/libpthread/man/sem_getvalue.3

@@ -49,12 +49,7 @@ as of the time that the call to
 .Fn sem_getvalue
 is actually run.
 .Sh RETURN VALUES
-If successful,
+.Rv -std sem_getvalue
-.Fn sem_getvalue
-returns 0.  Otherwise, -1 is returned and
-.Va errno
-is set to indicate the type of
-error.
 .Sh ERRORS
 .Fn sem_getvalue
 will fail if:

lib/libpthread/man/sem_init.3

@@ -63,12 +63,7 @@ and
 is no longer valid after a successful call to
 .Fa sem_destroy .
 .Sh RETURN VALUES
-If successful,
+.Rv -std sem_init
-.Fn sem_init
-returns 0.  Otherwise, -1 is returned and
-.Va errno
-is set to indicate the type of
-error.
 .Sh ERRORS
 .Fn sem_init
 will fail if:

lib/libpthread/man/sem_post.3

@@ -52,12 +52,7 @@ the semaphore will be allowed to return from
 .Fn sem_post
 is signal-reentrant and may be called within signal handlers.
 .Sh RETURN VALUES
-If successful,
+.Rv -std sem_post
-.Fn sem_post
-returns 0.  Otherwise, -1 is returned and
-.Va errno
-is set to indicate the type of
-error.
 .Sh ERRORS
 .Fn sem_post
 will fail if: