Ejecuto brew como root, ahora está extinto. No hay actualizaciones más. ¿Como arreglar?
$ brew update && brew upgrade error: Unable to append to .git/logs/HEAD: Permission denied error: Unable to append to .git/logs/refs/remotes/origin/master: Permission denied Error: Failed to update tap: caskroom/cask $ brew doctor Please note that these warnings are just used to help the Homebrew maintainers with debugging if you file an issue. If everything you use Homebrew for is working fine: please don't worry and just ignore them. Thanks! Warning: Your XQuartz (2.7.4) is outdated Please install XQuartz 2.7.7: https://xquartz.macosforge.org