run-regression-test: fix to stop the consumer on stop-on-failure mode

lib/groonga-query-log/server-verifier.rb

@@ -79,7 +79,7 @@ def run_consumers
       @options.n_clients.times.collect do
         Thread.new do
           loop do
-            break if run_consumer
+            break if run_consumer_stop?
           end
         end
       end
@@ -136,10 +136,14 @@ def target_command?(command)
       @options.target_command_name?(command.command_name)
     end
 
-    def  different_or_error_results?
+    def different_or_error_results?
       @same and !@client_error_is_occurred
     end
 
+    def run_consumer_stop?
+      run_consumer or @options.stop_on_failure?
+    end
+
     def verify_command(groonga1_client, groonga2_client, command)
       command["cache"] = "no" if @options.disable_cache?
       command["output_type"] = "json"