groups, then
.BR getgrouplist ()
returns \-1.
-In this case the value returned in
+In this case, the value returned in
.IR *ngroups
can be used to resize the buffer passed to a further call
.BR getgrouplist ().
.BR getgrent (3),
.BR group (5),
.BR passwd (5)
+.SH COLOPHON
+This page is part of release 3.64 of the Linux
+.I man-pages
+project.
+A description of the project,
+and information about reporting bugs,
+can be found at
+\%http://www.kernel.org/doc/man\-pages/.