Allow git config path to contain $HOME or other shell variables by expanding them with eval.
Allow git config path to contain $HOME or other shell variables by expanding them with eval.

Signed-off-by: Benjamin C Meyer <73675debcd8a436be48ec22211dcf44fe0df0a64@meyerhome.net>

FluxAugur/git-hooks,paulcadman/git-hooks,FluxAugur/git-hooks,icefox/git-hooks,SevInf/git-hooks,kbzod/git-hooks