all: add gradle format checker

This PR adds an automatic gradle format checker and reformats all the *.gradle files. After this, new changes to *.gradle files will fail to build if not in good format, just like checkStyle failure.

1 files changed, 2 insertions, 4 deletions

diff --git a/testing/build.gradle b/testing/build.gradle
index d272d7ff0..4a4805e77 100644
--- a/testing/build.gradle
+++ b/testing/build.gradle
@@ -17,9 +17,7 @@ dependencies {
     compileOnly libraries.truth
 
     testCompile project(':grpc-testing-proto'),
-                project(':grpc-core').sourceSets.test.output
+            project(':grpc-core').sourceSets.test.output
 }
 
-javadoc {
-  exclude 'io/grpc/internal/**'
-}
+javadoc { exclude 'io/grpc/internal/**' }