nnrpd/misc.c segfault & (maybe) fix

[Extra Strength Flufferin]

I'm getting a coredump in the CVS NEWNEWS command, due to a segfault
in PERMmatch().  The following stops the crashes, but someone more
familiar with the workings of PERM* will want to see if this is
fixing the real problem, or if something is wrong in HaveSeen(), which
made the offending call.

--- misc.c.orig	Fri Jun 30 21:38:07 2000
+++ misc.c	Sun Jul  9 01:46:43 2000
@@ -117,7 +117,7 @@
     char	        *p;
     int                 match = FALSE;
 
-    if (Pats[0] == NULL)
+    if (Pats == NULL || Pats[0] == NULL)
 	return TRUE;
 
     for ( ; *list; list++) {