project wide: git config entry for [diff] renames=true

On Thu, 2014-09-25 at 17:03 +0200, Greg Kroah-Hartman wrote:

In the future, please generate a git "move" diff, which makes it easier
to review, and prove that nothing really changed.  It also helps if the
file is a bit different from what you diffed against, which in my case,
was true.

Maybe it'd be possible to add 

[diff]
	renames = true

to the .git/config file.

but I don't find a mechanism to add anything to the
.git/config and have it be pulled.