Git设置当前分支为默认push分支

新手刚用Git，Push的时候出现错误：

To ssh://*******.com/HRC
   e06a5d2..265df95  master -> master
 ! [rejected]        R8 -> R8 (non-fast-forward)
 ! [rejected]        reserved -> reserved (non-fast-forwaritolite@******.com)
error: failed to push some refs to 'ssh://g/HRC'
hint: Updates were rejected because a pushed branch tip is behind its remote
hint: counterpart. If you did not intend to push that branch, you may want to
hint: specify branches to push or set the 'push.default' configuration
hint: variable to 'current' or 'upstream' to push only the current branch.

根据他的提示，我做了如下操作，

git config --global push.default "current"

然后继续push就成功了。