future-proof by flattening expr rc to 0/1

Submitted By: ylavic



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1927314 13f79535-47bb-0310-9956-ffa450edef68

Author: covener

modules/mappers/mod_rewrite.c

@@ -4283,6 +4283,10 @@ static cond_return_type apply_rewrite_cond(rewritecond_entry *p, rewrite_ctx *ct
                             p->pattern - p->pskip, err);
                 rc = COND_RC_NOMATCH;
             }
+            else {
+                rc = (rc > 0) ? COND_RC_MATCH : COND_RC_NOMATCH;
+            }
+
             /* update briRC backref info */
             if (rc && !(p->flags & CONDFLAG_NOTMATCH)) {
                 ctx->briRC.source = source;