Re: [PATCHv5] submodule deinit: require '--all' instead of '.' for all submodules

Stefan Beller wrote:

quoted

       $ rungit v2.6.6 submodule deinit .
       error: pathspec '.' did not match any file(s) known to git.
       Did you forget to 'git add'?

[...]

So instead of a pathspec add the '--all' option to deinit all submodules
and add a test to check for the corner case of an empty repository.

[...]

Signed-off-by: Stefan Beller <redacted>

Reviewed-by: Jonathan Nieder <redacted>