argument specifies the number of supplementary group IDs
in the buffer pointed to by
.IR list .
-.SH "RETURN VALUE"
+.SH RETURN VALUE
On success,
.BR getgroups ()
returns the number of supplementary group IDs.
.TP
.B EPERM
The calling process has insufficient privilege.
-.SH "CONFORMING TO"
+.SH CONFORMING TO
SVr4, 4.3BSD.
The
.BR getgroups ()
The glibc
.BR getgroups ()
wrapper function transparently deals with the variation across kernel versions.
-.SH "SEE ALSO"
+.SH SEE ALSO
.BR getgid (2),
.BR setgid (2),
.BR getgrouplist (3),