govuk-lint-ruby in govuk-lint-4.0.1

- old
+ new

@@ -1,7 +1,7 @@
 #!/usr/bin/env ruby
 
-lib = File.expand_path("../../lib", __FILE__)
+lib = File.expand_path("../lib", __dir__)
 $:.unshift lib unless $:.include?(lib)
 
 require "govuk/lint/cli"
 
 cli = Govuk::Lint::CLI.new