buildifier formatting of bazel files

Change-Id: I8196aa52ee640d1c500307a50a0ab4921138b69b
diff --git a/tools/build/bazel/osgi_java_library.bzl b/tools/build/bazel/osgi_java_library.bzl
index 77d791b..6c8a381 100644
--- a/tools/build/bazel/osgi_java_library.bzl
+++ b/tools/build/bazel/osgi_java_library.bzl
@@ -114,10 +114,9 @@
         deps.append(ctx.attr.source[java_common.provider])
     deps_provider = java_common.merge(deps)
     return struct(
-        providers = [deps_provider]
+        providers = [deps_provider],
     )
 
-
 _bnd = rule(
     attrs = {
         "deps": attr.label_list(),
@@ -155,8 +154,7 @@
         test_resources = None,
         visibility = ["//visibility:public"],
         version = ONOS_VERSION,
-        import_packages = None,
-    ):
+        import_packages = None):
     if name == None:
         name = "onos-" + native.package_name().replace("/", "-")
     if srcs == None:
@@ -220,8 +218,7 @@
         api_title = "",
         api_version = "",
         api_description = "",
-        api_package = "",
-    ):
+        api_package = ""):
     if srcs == None:
         srcs = _all_java_sources()
     if deps == None: