pidfile_open() no longer uses fcntl() to set the close-on-exec flag.

svn path=/head/; revision=230010

lib/libutil/pidfile.3

@@ -81,7 +81,7 @@ argument is
 file will be used.
 The
 .Fn pidfile_open
-function sets the FD_CLOEXEC close-on-exec flag on the open file descriptor.
+function sets the O_CLOEXEC close-on-exec flag when opening the pidfile.
 .Pp
 The
 .Fn pidfile_write
@@ -205,7 +205,6 @@ The
 function may also fail and set
 .Va errno
 for any errors specified for the
-.Xr fcntl 2 ,
 .Xr fstat 2 ,
 .Xr open 2 ,
 and