Adding a new option to git-push: --(no-)create-branch

Hello Git developers and users,

When I use Git, I tend to specify my branches explicitly.  For example:

git push origin master:master

However, I will often make a typo like this:

git push origin master:msater

I was thinking that it would be nice for git to support a new 
option/config value: --no-create-branch (push.createbranch).  This 
configuration variable
would forbid git from creating new remote branches, unless overriden 
with --create-branch.

Does anyone think this would be worth implementing?  I'd like to take 
the pulse of the community before I start making any modifications.

Thanks,
Rob Hoelz