.I si_code
field of that structure will be set to
.BR SI_QUEUE .
-.SH "RETURN VALUE"
+.SH RETURN VALUE
On success,
.BR sigqueue ()
returns 0, indicating that the signal was successfully
.IR pid .
.SH VERSIONS
This system call first appeared in Linux 2.2.
-.SH "CONFORMING TO"
+.SH CONFORMING TO
POSIX.1-2001.
.SH NOTES
If this function results in the sending of a signal to the process
uinfo.si_value = val; /* argument supplied to sigqueue() */
.fi
.in
-.SH "SEE ALSO"
+.SH SEE ALSO
.BR kill (2),
.BR rt_sigqueueinfo (2),
.BR sigaction (2),