fixup! add missing errno setting

resource/modules/resource_match.cpp

@@ -1145,6 +1145,7 @@ static int get_stat_by_rank (std::shared_ptr<resource_ctx_t>& ctx, json_t *o)
         }
         if ( (rc = json_object_set_new (o, str,
                       json_integer (static_cast<json_int_t> (kv.first)))) < 0) {
+            errno = ENOMEM;
             goto done;
         }
         saved_errno = errno;