git-gui: remove 'no such variable' for s error when encounter unknown file states
git-gui: remove 'no such variable' for s error when encounter unknown file states

$s will be referenced in the error message. Which was broken since
"git-gui: Automatically update-index all included files before commit"
(bbe3b3b, 2006-11-16).

Signed-off-by: Bert Wesarg <0d62a3713d750bb3a7440aad892eb1fd24c11fa3@googlemail.com>
Signed-off-by: Pat Thoyts <fe43a83262eef1680511f524a1e74d43c633cffe@users.sourceforge.net>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git