Region tag fixes for b/156959476 (#2924)

@saturnism FYI

Author: Ace Nassri

functions/helloworld/helloworld/pom.xml

@@ -25,6 +25,7 @@
 
   <groupId>com.example.cloud.functions</groupId>
   <artifactId>functions-hello-world</artifactId>
+  <version>1.0.0-SNAPSHOT</version>
   <!-- [END functions_example_pom] -->
   <!-- [END functions_example_pom_dependencies] -->
 

functions/helloworld/helloworld/src/main/java/functions/HelloWorld.java

@@ -14,10 +14,10 @@
  * limitations under the License.
  */
 
-package functions;
-
 // [START functions_helloworld_get]
 
+package functions;
+
 import com.google.cloud.functions.HttpFunction;
 import com.google.cloud.functions.HttpRequest;
 import com.google.cloud.functions.HttpResponse;