* pacman-{database,deptest,files,key,query}: add pt_BR translation
* pacaur.md: Add pt_BR translation
* paccache.md: Add pt_BR translation
* pacdiff.md: Add pt_BR translation
* pacgraph.md: Add pt_BR translation
* pacman4console.md: Add pt_BR translation
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Co-authored-by: Renie Siqueira <reniedev.github@3nie.com>