Fix stardoc_with_diff_test linter warnings (#390)

Google internal linters are flagging skylib 1.3.0 because the stardoc_with_diff_test
macro lack a copyright notice and does not use a `name` parameter.

docs/BUILD

@@ -3,116 +3,139 @@ load("//docs/private:stardoc_with_diff_test.bzl", "stardoc_with_diff_test", "upd
 licenses(["notice"])
 
 stardoc_with_diff_test(
+    name = "analysis_test",
     bzl_library_target = "//rules:analysis_test",
     out_label = "//docs:analysis_test_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "build_test",
     bzl_library_target = "//rules:build_test",
     out_label = "//docs:build_test_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "collections",
     bzl_library_target = "//lib:collections",
     out_label = "//docs:collections_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "common_settings",
     bzl_library_target = "//rules:common_settings",
     out_label = "//docs:common_settings_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "copy_directory",
     bzl_library_target = "//rules:copy_directory",
     out_label = "//docs:copy_directory_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "copy_file",
     bzl_library_target = "//rules:copy_file",
     out_label = "//docs:copy_file_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "dicts",
     bzl_library_target = "//lib:dicts",
     out_label = "//docs:dicts_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "diff_test",
     bzl_library_target = "//rules:diff_test",
     out_label = "//docs:diff_test_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "expand_template",
     bzl_library_target = "//rules:expand_template",
     out_label = "//docs:expand_template_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "native_binary",
     bzl_library_target = "//rules:native_binary",
     out_label = "//docs:native_binary_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "new_sets",
     bzl_library_target = "//lib:new_sets",
     out_label = "//docs:new_sets_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "partial",
     bzl_library_target = "//lib:partial",
     out_label = "//docs:partial_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "paths",
     bzl_library_target = "//lib:paths",
     out_label = "//docs:paths_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "run_binary",
     bzl_library_target = "//rules:run_binary",
     out_label = "//docs:run_binary_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "selects",
     bzl_library_target = "//lib:selects",
     out_label = "//docs:selects_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "select_file",
     bzl_library_target = "//rules:select_file",
     out_label = "//docs:select_file_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "shell",
     bzl_library_target = "//lib:shell",
     out_label = "//docs:shell_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "structs",
     bzl_library_target = "//lib:structs",
     out_label = "//docs:structs_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "subpackages",
     bzl_library_target = "//lib:subpackages",
     out_label = "//docs:subpackages_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "types",
     bzl_library_target = "//lib:types",
     out_label = "//docs:types_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "unittest",
     bzl_library_target = "//lib:unittest",
     out_label = "//docs:unittest_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "versions",
     bzl_library_target = "//lib:versions",
     out_label = "//docs:versions_doc.md",
 )
 
 stardoc_with_diff_test(
+    name = "write_file",
     bzl_library_target = "//rules:write_file",
     out_label = "//docs:write_file_doc.md",
 )

docs/private/stardoc_with_diff_test.bzl

@@ -1,3 +1,17 @@
+# Copyright 2022 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.
+
 """Helpers for keeping stardoc documentation up-to-date.
 
 These are currently a private API in bazel-skylib.
@@ -14,6 +28,7 @@ load("@bazel_skylib//rules:write_file.bzl", "write_file")
 load("@bazel_skylib//rules:diff_test.bzl", "diff_test")
 
 def stardoc_with_diff_test(
+        name,
         bzl_library_target,
         out_label):
     """Creates a stardoc target coupled with a `diff_test` for a given `bzl_library`.
@@ -21,15 +36,15 @@ def stardoc_with_diff_test(
     This is helpful for minimizing boilerplate in repos wih lots of stardoc targets.
 
     Args:
+        name: the stardoc target name
         bzl_library_target: the label of the `bzl_library` target to generate documentation for
         out_label: the label of the output MD file
     """
-
     out_file = out_label.replace("//", "").replace(":", "/")
 
     # Generate MD from .bzl
     stardoc(
-        name = out_file.replace("/", "_").replace(".md", "-docgen"),
+        name = name,
         out = out_file.replace(".md", "-docgen.md"),
         input = bzl_library_target + ".bzl",
         deps = [bzl_library_target],