/usr/lib/ruby/vendor_ruby/thor/parser.rb is in ruby-thor 0.19.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | require "thor/parser/argument"
require "thor/parser/arguments"
require "thor/parser/option"
require "thor/parser/options"
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