mac git tab补全参数

这种方案可行：

brew install git bash-completion

然后在～/.bash_profile中添加：
if [ -f `brew --prefix`/etc/bash_completion.d/git-completion.bash ]; then

  . `brew --prefix`/etc/bash_completion.d/git-completion.bash

fi

最后做个高效率的码农（懒人）吧^_^