mailmap: add name/email aliases for yuangongji (name and email) Before: $ git log --format='%aE %aN' --author=yuangongji | sort | uniq -c 30 82787816@qq.com yuangongji 1 82787816@qq.com yuangongji (A) After: $ git log --format='%aE %aN' --author=yuangongji | sort | uniq -c 34 yuangongji@foxmail.com yuangongji