细节：
我通过 Homebrew 安装了最新的 MacVim：
$ command-t brew install macvim
==> Downloading https://github.com/b4winckler/macvim/tarball/snapshot-64
Already downloaded: /Library/Caches/Homebrew/macvim-7.3-64.tgz
==> ./configure --with-features=huge --with-tlib=ncurses --enable-multibyte --with-macarchs=x86_64 --enable-perlinterp --enable-pythoninterp --enable-rubyinterp --enable-t
==> make getenvy
==> make
==> Caveats
MacVim.app installed to:
/usr/local/Cellar/macvim/7.3-64
To link the application to a normal Mac OS X location:
brew linkapps
or:
ln -s /usr/local/Cellar/macvim/7.3-64/MacVim.app /Applications
==> Summary
/usr/local/Cellar/macvim/7.3-64: 1733 files, 27M, built in 53 seconds
$ command-t brew linkapps
Linking /usr/local/Cellar/macvim/7.3-64/MacVim.app
Finished linking. Find the links under ~/Applications. …