Skip ignored files in the output of list-untracked

[hvhaugwitz]

Please add '--exclude-standard' to the 'git ls-files' call of the list_untracked_helper function by default to skip ignored files in the output and add '-a' option to list all files.

[tjaartvdwalt]

I second this request.

It would allow me to easily see which files have not been ignored or added to a repository. These are the files I need to give attention to.

[RichiH]

Please see that branch and get back to me.

[hvhaugwitz]

Looks good, thanks!