login_close() should avoid memory leak.

millert@ ok

src/lib/libutil/check_expire.c

@@ -1,4 +1,4 @@
-/*	$OpenBSD: check_expire.c,v 1.4 2002/02/16 21:27:29 millert Exp $	*/
+/*	$OpenBSD: check_expire.c,v 1.5 2002/02/19 19:06:05 mpech Exp $	*/
 
 /*
  * Copyright (c) 1997 Berkeley Software Design, Inc. All rights reserved.
@@ -102,6 +102,7 @@ login_check_expire(back, pwd, class, lastchance)
 				warn = 0;
 			}
 		}
+		login_close(lc);
 
 		/*
 		 * If their password is dead (expired longer than