
Currently, if brew doctor detects untracked changes in the local repo, it suggests doing 'git reset --hard', but that doesn't remove untracked files. This change adds an additional suggestion to run 'git clean -f' to remove them. Closes Homebrew/homebrew#12814. Signed-off-by: Max Howell <mxcl@me.com> Changed the path to Library as we don't want to clean -f all over the whole /usr/local :P