Reverse order of arguments in getgroups call (in example) to match prototype.

diff --git a/manual/users.texi b/manual/users.texi
index c35e8b6a5bdc97979bed685066894b761659f65e..9b5e1ce9b5fac58b8f784adec4d3d87520509d51 100644 (file)
--- a/manual/users.texi
+++ b/manual/users.texi
@@ -246,7 +246,7 @@ IDs:
 gid_t *
 read_all_groups (void)
 @{
-  int ngroups = getgroups (NULL, 0);
+  int ngroups = getgroups (0, NULL);
   gid_t *groups
     = (gid_t *) xmalloc (ngroups * sizeof (gid_t));
   int val = getgroups (ngroups, groups);