return ChainedInstrumentation when registry present in context

Author: agairol

src/main/java/graphql/servlet/OsgiGraphQLServlet.java

@@ -214,7 +214,8 @@ protected Instrumentation getInstrumentation(GraphQLContext context) {
                     instrumentations.add(new DataLoaderDispatcherInstrumentation(registry));
 
                     return new ChainedInstrumentation(instrumentations);
-                })                .map(Instrumentation.class::cast)
+                })
+                .map(Instrumentation.class::cast)
                 .orElse(instrumentationProvider.getInstrumentation());
     }