.BR strsignal ()
function returns the appropriate description
string, or an unknown signal message if the signal number is invalid.
-On some systems (but not on Linux), a NULL pointer may be
-returned instead for an invalid signal number.
+On some systems (but not on Linux), NULL may instead be
+returned for an invalid signal number.
.SH CONFORMING TO
POSIX.1-2008.
Present on Solaris and the BSDs.
.SH SEE ALSO
.BR psignal (3),
.BR strerror (3)
+.SH COLOPHON
+This page is part of release 3.79 of the Linux
+.I man-pages
+project.
+A description of the project,
+information about reporting bugs,
+and the latest version of this page,
+can be found at
+\%http://www.kernel.org/doc/man\-pages/.