fix indent level

Author: Tad Sanden

graphql-kickstart-spring-support/src/main/java/graphql/kickstart/spring/error/GraphQLErrorStartupListener.java

@@ -18,9 +18,10 @@ public GraphQLErrorStartupListener(ErrorHandlerSupplier errorHandlerSupplier, bo
 
   @Override
   public void onApplicationEvent(@NonNull ContextRefreshedEvent event) {
-      ConfigurableApplicationContext context = (ConfigurableApplicationContext) event.getApplicationContext();
-      GraphQLErrorHandler errorHandler = new GraphQLErrorHandlerFactory().create(context, exceptionHandlersEnabled);
-      context.getBeanFactory().registerSingleton(errorHandler.getClass().getCanonicalName(), errorHandler);
-      errorHandlerSupplier.setErrorHandler(errorHandler);
+    ConfigurableApplicationContext context = (ConfigurableApplicationContext) event.getApplicationContext();
+    GraphQLErrorHandler errorHandler = new GraphQLErrorHandlerFactory().create(context, exceptionHandlersEnabled);
+    context.getBeanFactory().registerSingleton(errorHandler.getClass().getCanonicalName(), errorHandler);
+    errorHandlerSupplier.setErrorHandler(errorHandler);
   }
+
 }