最近使用微软的 VSTS（www.visualstudio.com）,Git代码托管后，在Mac上出现验证失败的问题
解决办法：
Use Git Credential Managers to Authenticate to VSTS
Installing on Mac using Homebrew or on Linux using Linuxbrew
- Update the Homebrew/Linuxbrew formulae to make sure you have the latest versions:
brew update
- Install the GCM4ML formula:
brew install git-credential-manager
- Run the GCM4ML in install mode, which will check its requirements and then update the "global" Git configuration file (the one in your home folder):
git-credential-manager install
