Copyright 2021 The Monogon Project Authors.

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

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This adds a go_tool_library target to github.com/muesli/reflow. This can
be removed when go_tool_library gets replaced with transition:
https://github.com/bazelbuild/rules_go/issues/2374

diff -ur a/BUILD.bazel b/BUILD.bazel
--- a/BUILD.bazel	2021-05-21 14:36:39.411306726 +0200
+++ b/BUILD.bazel	2021-05-21 14:37:02.602460127 +0200
@@ -1,4 +1,14 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test", "go_tool_library")
+
+go_tool_library(
+    name = "go_tool_library",
+    srcs = [
+        "ansibuffer.go",
+        "reflow.go",
+    ],
+    importpath = "github.com/muesli/reflow",
+    visibility = ["//visibility:public"],
+)
 
 go_library(
     name = "go_default_library",