Add whitespace to Datastore samples' pom.xml files.

Re:
https://github.com/GoogleCloudPlatform/java-docs-samples/pull/214/files#r61533229

appengine/datastore/indexes-exploding/pom.xml

@@ -1,30 +1,32 @@
 <!--
-Copyright 2016 Google Inc. All Rights Reserved.
+  Copyright 2016 Google Inc. All Rights Reserved.
 
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
 
        http://www.apache.org/licenses/LICENSE-2.0
 
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
 <project>
   <modelVersion>4.0.0</modelVersion>
   <packaging>war</packaging>
   <version>1.0-SNAPSHOT</version>
   <groupId>com.example.appengine</groupId>
   <artifactId>appengine-datastore-indexes-exploding</artifactId>
+
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>doc-samples</artifactId>
     <version>1.0.0</version>
     <relativePath>../../..</relativePath>
   </parent>
+
   <dependencies>
     <dependency>
       <groupId>com.google.appengine</groupId>
@@ -76,6 +78,7 @@ Copyright 2016 Google Inc. All Rights Reserved.
       <scope>test</scope>
     </dependency>
   </dependencies>
+
   <build>
     <!-- for hot reload of the web application -->
     <outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>

appengine/datastore/indexes-perfect/pom.xml

@@ -1,30 +1,32 @@
 <!--
-Copyright 2016 Google Inc. All Rights Reserved.
+  Copyright 2016 Google Inc. All Rights Reserved.
 
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
 
-       http://www.apache.org/licenses/LICENSE-2.0
+      http://www.apache.org/licenses/LICENSE-2.0
 
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
 <project>
   <modelVersion>4.0.0</modelVersion>
   <packaging>war</packaging>
   <version>1.0-SNAPSHOT</version>
   <groupId>com.example.appengine</groupId>
   <artifactId>appengine-datastore-indexes-perfect</artifactId>
+
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>doc-samples</artifactId>
     <version>1.0.0</version>
     <relativePath>../../..</relativePath>
   </parent>
+
   <dependencies>
     <dependency>
       <groupId>com.google.appengine</groupId>
@@ -76,6 +78,7 @@ Copyright 2016 Google Inc. All Rights Reserved.
       <scope>test</scope>
     </dependency>
   </dependencies>
+
   <build>
     <!-- for hot reload of the web application -->
     <outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>

appengine/datastore/indexes/pom.xml

@@ -1,30 +1,32 @@
 <!--
-Copyright 2016 Google Inc. All Rights Reserved.
+  Copyright 2016 Google Inc. All Rights Reserved.
 
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
 
        http://www.apache.org/licenses/LICENSE-2.0
 
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
 <project>
   <modelVersion>4.0.0</modelVersion>
   <packaging>war</packaging>
   <version>1.0-SNAPSHOT</version>
   <groupId>com.example.appengine</groupId>
   <artifactId>appengine-datastore-indexes</artifactId>
+
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>doc-samples</artifactId>
     <version>1.0.0</version>
     <relativePath>../../..</relativePath>
   </parent>
+
   <dependencies>
     <dependency>
       <groupId>com.google.appengine</groupId>
@@ -76,6 +78,7 @@ Copyright 2016 Google Inc. All Rights Reserved.
       <scope>test</scope>
     </dependency>
   </dependencies>
+
   <build>
     <!-- for hot reload of the web application -->
     <outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>

appengine/datastore/pom.xml

@@ -1,30 +1,32 @@
 <!--
-Copyright 2016 Google Inc. All Rights Reserved.
+  Copyright 2016 Google Inc. All Rights Reserved.
 
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
 
        http://www.apache.org/licenses/LICENSE-2.0
 
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
 <project>
   <modelVersion>4.0.0</modelVersion>
   <packaging>war</packaging>
   <version>1.0-SNAPSHOT</version>
   <groupId>com.example.appengine</groupId>
   <artifactId>appengine-datastore</artifactId>
+
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>doc-samples</artifactId>
     <version>1.0.0</version>
     <relativePath>../..</relativePath>
   </parent>
+
   <dependencies>
     <dependency>
       <groupId>com.google.appengine</groupId>
@@ -99,6 +101,7 @@ Copyright 2016 Google Inc. All Rights Reserved.
       <scope>test</scope>
     </dependency>
   </dependencies>
+
   <build>
     <!-- for hot reload of the web application -->
     <outputDirectory>${project.build.directory}/${project.build.finalName}/WEB-INF/classes</outputDirectory>