Allow oper to set gline in the form of nick!*@*, but only
when the nick part contains no wildcards.

diff -r fcfbd0f17eef ircd/gline.c
--- a/ircd/gline.c	Fri Jan 23 00:14:32 2009 +0100
+++ b/ircd/gline.c	Fri Jan 23 00:25:24 2009 +0100
@@ -530,7 +530,8 @@
     if (sizeof(uhmask) <
 	ircd_snprintf(0, uhmask, sizeof(uhmask), "%s@%s", user, host))
       return send_reply(sptr, ERR_LONGMASK);
-    else if (MyUser(sptr) || (IsUser(sptr) && flags & GLINE_LOCAL)) {
+    /* when the nick part contains no wildcards, let it through */
+    else if ((MyUser(sptr) || (IsUser(sptr) && flags & GLINE_LOCAL)) && string_has_wildcards(nick)) {
       switch (gline_checkmask(host)) {
       case CHECK_OVERRIDABLE: /* oper overrided restriction */
 	if (flags & GLINE_OPERFORCE)