Standardize EXIT STATUS instructions in man pages when possible.

Approved by:	bcr (mentor)
MFC after:	3 days

usr.bin/pr/pr.1

@@ -361,9 +361,7 @@ and
 require that both arguments, if present, not be separated from the option
 letter.
 .Sh EXIT STATUS
-The
-.Nm
-utility exits 0 on success, and 1 if an error occurs.
+.Ex -std
 .Sh DIAGNOSTICS
 If
 .Nm

usr.bin/seq/seq.1

@@ -127,10 +127,8 @@ If any sequence numbers will be printed in exponential notation,
 the default conversion is changed to
 .Cm %e .
 .El
-.Pp
-The
-.Nm
-utility exits 0 on success and non-zero if an error occurs.
+.Sh EXIT STATUS
+.Ex -std
 .Sh EXAMPLES
 .Bd -literal -offset indent
 # seq 1 3

usr.sbin/nfscbd/nfscbd.8

@@ -77,10 +77,8 @@ has been specified.
 For more information on what callbacks and Open Delegations do, see
 .%T "Network File System (NFS) Version 4 Protocol" ,
 RFC3530.
-.Pp
-The
-.Nm
-utility exits 0 on success or >0 if an error occurred.
+.Sh EXIT STATUS
+.Ex -std
 .Sh SEE ALSO
 .Xr nfsv4 4 ,
 .Xr mount_nfs 8