gбновление зависимостей, рефакторинг кода, чтобы он выглядел как гошный проект

vendor/golang.org/x/text/LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2009 The Go Authors. All rights reserved.
+Copyright 2009 The Go Authors.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
@@ -10,7 +10,7 @@ notice, this list of conditions and the following disclaimer.
 copyright notice, this list of conditions and the following disclaimer
 in the documentation and/or other materials provided with the
 distribution.
-   * Neither the name of Google Inc. nor the names of its
+   * Neither the name of Google LLC nor the names of its
 contributors may be used to endorse or promote products derived from
 this software without specific prior written permission.
 

vendor/golang.org/x/text/language/parse.go

@@ -59,7 +59,7 @@ func (c CanonType) Parse(s string) (t Tag, err error) {
 	if changed {
 		tt.RemakeString()
 	}
-	return makeTag(tt), err
+	return makeTag(tt), nil
 }
 
 // Compose creates a Tag from individual parts, which may be of type Tag, Base,