httpd: reduce request logging to debug_rpc level.

This brings back the behaviour of 2 commits ago.

bzr revid: p_christ@hol.gr-20100726093335-d1rdfwsjhdymv8v3

bin/service/http_server.py

@@ -100,7 +100,7 @@ class HttpLogHandler:
         self._logger.error(format % args)
 
     def log_request(self, code='-', size='-'):
-        self._logger.debug('"%s" %s %s',
+        self._logger.log(netsvc.logging.DEBUG_RPC, '"%s" %s %s',
                         self.requestline, str(code), str(size))
     
 class MultiHandler2(HttpLogHandler, MultiHTTPHandler):