YouTube sample incorrectly formatted at head.

[elharo]

P1 since it breaks the CI checks

Error:  src/main/java/com/example/json/YouTubeSample.java:[8] (header) RegexpHeader: Line does not match expected header line of '^\W+\*?\W*http://www.apache.org/licenses/LICENSE-2.0$'.
Error:  src/main/java/com/example/json/YouTubeSample.java:[16,1] (whitespace) EmptyLineSeparator: 'package' should be separated from previous statement.
Error:  src/main/java/com/example/json/YouTubeSample.java:[21,1] (imports) CustomImportOrder: Extra separation in import group before 'java.io.IOException'
Error:  src/test/java/com/example/json/YouTubeSampleTest.java:[8] (header) RegexpHeader: Line does not match expected header line of '^\W+\*?\W*http://www.apache.org/licenses/LICENSE-2.0$'.
Error:  src/test/java/com/example/json/YouTubeSampleTest.java:[16,1] (whitespace) EmptyLineSeparator: 'package' should be separated from previous statement.
Error:  src/test/java/com/example/json/YouTubeSampleTest.java:[33,1] (imports) CustomImportOrder: Extra separation in import group before 'java.io.IOException'
Error:  src/test/java/com/example/json/YouTubeSampleTest.java:[33,1] (imports) CustomImportOrder: Wrong lexicographical order for 'java.io.IOException' import. Should be before 'org.junit.Test'.
Error:  src/test/java/com/example/json/YouTubeSampleTest.java:[34,1] (imports) CustomImportOrder: Wrong lexicographical order for 'java.io.InputStream' import. Should be before 'org.junit.Test'.
Error:  src/test/java/com/example/json/YouTubeSampleTest.java:[35,1] (imports) CustomImportOrder: Wrong lexicographical order for 'java.util.Map' import. Should be before 'org.junit.Test'.
Error:  src/test/java/com/example/json/YouTubeSampleTest.java:[37,1] (imports) CustomImportOrder: Import statement for 'org.junit.Assert.assertEquals' is in the wrong order. Should be in the 'STATIC' group, expecting not assigned imports on this line.
Error:  src/test/java/com/example/json/YouTubeSampleTest.java:[38,1] (imports) CustomImportOrder: Import statement for 'org.junit.Assert.assertNotNull' is in the wrong order. Should be in the 'STATIC' group, expecting not assigned imports on this line.
Error:  src/test/java/com/example/json/YouTubeSampleTest.java:[44] (sizes) LineLength: Line is longer than 100 characters (found 104).
Error:  Failed to execute goal org.apache.maven.plugins:maven-checkstyle-plugin:3.1.1:check (default-cli) on project google-http-client-snippets: You have 12 Checkstyle violations. -> [Help 1]
Error:  
Error:  To see the full stack trace of the errors, re-run Maven with the -e switch.
Error:  Re-run Maven using the -X switch to enable full debug logging.
Error:  
Error:  For more information about the errors and possible solutions, please read the following articles:
Error:  [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
Error: Process completed with exit code 1.