@section @code{getgrnam_r}
@findex getgrnam_r
-POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/getgrnam_r.html}
+POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/getgrnam_r.html}
Gnulib module: extensions