/usr/ is in golang-github-dlclark-regexp2-dev 1.1.6-1.
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/usr/share/doc/golang-github-dlclark-regexp2-dev/copyright
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/usr/share/gocode/src/github.com/dlclark/regexp2/regexp_mono_test.go
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/usr/share/gocode/src/github.com/dlclark/regexp2/testoutput1