Milter-greylist

Hello, 

The patch below fixes a memory leak that has been in milter-greylist 
since acl.c#rev1.41 (2006-12-29).

The alarm was raised as 'Dead Store', 'dead nested assignment' by 
LLVM/Clang Static Analyser, researched and fixed by myself.  :-)

Cheers,
Constantine.						    cnst.su

Index: acl.c
===================================================================
RCS file: /milter-greylist/milter-greylist/acl.c,v
retrieving revision 1.83
diff -u -d -p -4 -r1.83 acl.c
--- acl.c	6 Nov 2008 11:23:53 -0000	1.83
+++ acl.c	10 Nov 2008 01:47:15 -0000
@@ -1657,12 +1657,8 @@ acl_register_entry_first(acl_stage, acl_
 			mg_log(LOG_DEBUG, "Drop ACL %d", conf_line - 1);
 		return NULL;
 	}
 
-	if ((acl = malloc(sizeof(*acl))) == NULL) {
-		mg_log(LOG_ERR, "ACL malloc failed: %s", strerror(errno));
-		exit(EX_OSERR);
-	}
 	acl = gacl;
 	acl->a_type = acl_type;
 	acl->a_stage = acl_stage;
 	acl->a_line = conf_line - 1;