run buildifier 0.22.0
diff --git a/WORKSPACE b/WORKSPACE
index 4ae2edc..3bd79f7 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -9,10 +9,13 @@
 # bazel-skylib.
 
 load("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository")
+
 git_repository(
     name = "io_bazel_skydoc",
+    commit = "ac5c106412697ffb9364864070bac796b9bb63d3",  # Feb 27, 2019
     remote = "https://github.com/bazelbuild/skydoc.git",
-    commit = "ac5c106412697ffb9364864070bac796b9bb63d3", # Feb 27, 2019
 )
+
 load("@io_bazel_skydoc//skylark:skylark.bzl", "skydoc_repositories")
+
 skydoc_repositories()
diff --git a/docs/BUILD b/docs/BUILD
index 865db0b..3bf6a3c 100644
--- a/docs/BUILD
+++ b/docs/BUILD
@@ -4,98 +4,97 @@
 # the --incompatible_remap_main_repo flag.
 stardoc(
     name = "build_test_docs",
-    input = "//rules:build_test.bzl",
     out = "build_test_doc_gen.md",
+    input = "//rules:build_test.bzl",
     deps = ["//rules:build_test"],
 )
 
 stardoc(
     name = "analysis_test_docs",
-    input = "//rules:analysis_test.bzl",
     out = "analysis_test_doc_gen.md",
+    input = "//rules:analysis_test.bzl",
 )
 
 stardoc(
     name = "collections_docs",
-    input = "//lib:collections.bzl",
     out = "collections_doc_gen.md",
+    input = "//lib:collections.bzl",
     deps = ["//lib:collections"],
 )
 
 stardoc(
     name = "dicts_docs",
-    input = "//lib:dicts.bzl",
     out = "dicts_doc_gen.md",
+    input = "//lib:dicts.bzl",
     deps = ["//lib:dicts"],
 )
 
 stardoc(
     name = "partial_docs",
-    input = "//lib:partial.bzl",
     out = "partial_doc_gen.md",
+    input = "//lib:partial.bzl",
     deps = ["//lib:partial"],
 )
 
 stardoc(
     name = "paths_docs",
-    input = "//lib:paths.bzl",
     out = "paths_doc_gen.md",
+    input = "//lib:paths.bzl",
     deps = ["//lib:paths"],
 )
 
 stardoc(
     name = "selects_docs",
-    input = "//lib:selects.bzl",
     out = "selects_doc_gen.md",
+    input = "//lib:selects.bzl",
     deps = ["//lib:selects"],
 )
 
 stardoc(
     name = "new_sets_docs",
-    input = "//lib:new_sets.bzl",
     out = "new_sets_doc_gen.md",
+    input = "//lib:new_sets.bzl",
     deps = ["//lib:new_sets"],
 )
 
 stardoc(
     name = "shell_docs",
-    input = "//lib:shell.bzl",
     out = "shell_doc_gen.md",
+    input = "//lib:shell.bzl",
     deps = ["//lib:shell"],
 )
 
 stardoc(
     name = "structs_docs",
-    input = "//lib:structs.bzl",
     out = "structs_doc_gen.md",
+    input = "//lib:structs.bzl",
     deps = ["//lib:structs"],
 )
 
 stardoc(
     name = "types_docs",
-    input = "//lib:types.bzl",
     out = "types_doc_gen.md",
+    input = "//lib:types.bzl",
     deps = ["//lib:types"],
 )
 
 stardoc(
     name = "unittest_docs",
-    input = "//lib:unittest.bzl",
     out = "unittest_doc_gen.md",
+    input = "//lib:unittest.bzl",
     deps = ["//lib:unittest"],
 )
 
 stardoc(
     name = "versions_docs",
-    input = "//lib:versions.bzl",
     out = "versions_doc_gen.md",
+    input = "//lib:versions.bzl",
     deps = ["//lib:versions"],
 )
 
 stardoc(
     name = "maprule_docs",
-    input = "//rules:maprule.bzl",
     out = "maprule_doc_gen.md",
+    input = "//rules:maprule.bzl",
     deps = ["//rules:maprule"],
 )
-