please document --cached option to git-difftool

Hello,

It would be great if the documentation showed that the git-difftool(1)
command accepted the --cached option.  You can probably steal appropriate
verbiage from the git-diff(1) manpage.

$ git --version
git version 2.1.1

Thanks,
--Joe

Joseph Nahmias schrieb am 20.10.2014 um 23:24:

Hello,

It would be great if the documentation showed that the git-difftool(1)
command accepted the --cached option.  You can probably steal appropriate
verbiage from the git-diff(1) manpage.

$ git --version
git version 2.1.1

Thanks,
--Joe

From git-difftool(1):

"git difftool is a frontend to git diff and accepts the same options and
arguments. See git-diff(1)."

Michael