logging: http logging should limit the data to some sane ammount.

Despite debug logs aren't production use, we can have situation that this could potentially
print GBs of data from commands like file upload. Having some sane limit here is better.

rhodecode/lib/vcs/client_http.py

@@ -147,7 +147,7 b' class RemoteRepo(object):'
 
     def _call_with_logging(self, name, *args, **kwargs):
         context_uid = self._wire.get('context')
-        log.debug('Calling %s@%s with args:%r. wire_context: %s',
+        log.debug('Calling %s@%s with args:%.10240r. wire_context: %s',
                   self.url, name, args, context_uid)
         return RemoteRepo._call(self, name, *args, **kwargs)