/usr/lib/ is in ruby-fast-gettext 0.7.1-1.
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/usr/lib/ruby/
/usr/lib/ruby/vendor_ruby/
/usr/lib/ruby/vendor_ruby/fast_gettext.rb
/usr/lib/ruby/vendor_ruby/fast_gettext/
/usr/lib/ruby/vendor_ruby/fast_gettext/translation.rb
/usr/lib/ruby/vendor_ruby/fast_gettext/mo_file.rb
/usr/lib/ruby/vendor_ruby/fast_gettext/vendor/
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/usr/lib/ruby/vendor_ruby/fast_gettext/vendor/poparser.rb
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/usr/lib/ruby/vendor_ruby/fast_gettext/vendor/string.rb
/usr/lib/ruby/vendor_ruby/fast_gettext/vendor/mofile.rb
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/usr/lib/ruby/vendor_ruby/fast_gettext/po_file.rb
/usr/lib/ruby/vendor_ruby/fast_gettext/version.rb
/usr/lib/ruby/vendor_ruby/fast_gettext/translation_repository.rb
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/usr/lib/ruby/vendor_ruby/fast_gettext/translation_repository/logger.rb
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/usr/lib/ruby/vendor_ruby/fast_gettext/translation_repository/chain.rb
/usr/lib/ruby/vendor_ruby/fast_gettext/translation_repository/mo.rb
/usr/lib/ruby/vendor_ruby/fast_gettext/translation_repository/db.rb
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/usr/lib/ruby/vendor_ruby/fast_gettext/translation_repository/db_models/translation_text.rb
/usr/lib/ruby/vendor_ruby/fast_gettext/translation_repository/db_models/translation_key.rb