--- server/protocol.c	2012-07-22 04:32:47.000000000 -0700
+++ server/protocol.c	2013-01-08 01:32:30.899644210 -0800
@@ -979,7 +979,7 @@
             || r->status == HTTP_BAD_REQUEST) {
             if (r->status == HTTP_REQUEST_URI_TOO_LARGE) {
                 ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(00565)
-                              "request failed: URI too long (longer than %d)",
+                              "request failed: client's request-line exceeds 'LimitRequestLine' (longer than %d)",
                               r->server->limit_req_line);
             }
             else if (r->method == NULL) {