Update to google style (#63)

* Update skylark_library.bzl to conform to Google's code style.

skylark_library.bzl

@@ -1,10 +1,30 @@
+# Copyright 2018 The Bazel Authors. 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
+#
+#    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.
+
+"""Skylib module containing a library rule for aggregating rules files.
+
+Deprecated:
+  Use bzl_library in bzl_library.bzl instead.
+"""
+
+load("//:bzl_library.bzl", "StarlarkLibraryInfo", "bzl_library")
+
 print(
     "WARNING: skylark_library.bzl is deprecated and will go away in the future, please" +
     " use bzl_library.bzl instead.",
 )
 
-load("//:bzl_library.bzl", "StarlarkLibraryInfo", "bzl_library")
-
 # These are temporary forwarding macros to facilitate migration to
 # the new names for these objects.
 SkylarkLibraryInfo = StarlarkLibraryInfo