buildifier reformatting of bazel files

Change-Id: I1645613ec9dc57e659e7036634fcf3f3992b05a7
diff --git a/protocols/grpc/api/BUILD b/protocols/grpc/api/BUILD
index f7fee65..55e2b4a 100644
--- a/protocols/grpc/api/BUILD
+++ b/protocols/grpc/api/BUILD
@@ -1,3 +1,3 @@
-osgi_jar (
+osgi_jar(
     deps = CORE_DEPS + ["@io_grpc_grpc_java//core"],
 )