[BUG] negation in ACL conds was not cleared between terms

The exclamation mark (!) in front of an ACL condition was propagated
to the whole line instead of being flushed after parsing an acl name.
diff --git a/src/acl.c b/src/acl.c
index 0cc9248..c4860ab 100644
--- a/src/acl.c
+++ b/src/acl.c
@@ -546,8 +546,7 @@
 struct acl_cond *parse_acl_cond(const char **args, struct list *known_acl, int pol)
 {
 	__label__ out_return, out_free_suite, out_free_term;
-	int arg;
-	int neg = 0;
+	int arg, neg;
 	const char *word;
 	struct acl *cur_acl;
 	struct acl_term *cur_term;
@@ -563,6 +562,7 @@
 	cond->pol = pol;
 
 	cur_suite = NULL;
+	neg = 0;
 	for (arg = 0; *args[arg]; arg++) {
 		word = args[arg];
 
@@ -605,6 +605,7 @@
 			LIST_ADDQ(&cond->suites, &cur_suite->list);
 		}
 		LIST_ADDQ(&cur_suite->terms, &cur_term->list);
+		neg = 0;
 	}
 
 	return cond;
@@ -677,7 +678,7 @@
 					}
 				}
 				/*
-				 * OK now we have the result of this expression in expr_res.
+				 * OK now we have the result of this expression in acl_res.
 				 *  - we have the PASS bit set if at least one pattern matched ;
 				 *  - we have the MISS bit set if at least one pattern may match
 				 *    later so that we should not cache a failure ;