Fix expected test response format in JaxRsTest

Author: ludoch

e2etests/devappservertests/src/test/java/com/google/appengine/tools/development/JaxRsTest.java

@@ -62,7 +62,7 @@ public void testJaxRs() throws Exception {
     // App Engine Memcache access.
     executeHttpGet(
         "/hello",
-        "hello\n",
+        "hello",
         RESPONSE_200);
 
   }