List individual files in new directories

[jmcgill]

git status does not expand new directories by default. This is causing entire directories to be passed to ghcommit e.g:

ghcommit ... -add newdir/

This causes an error in ghcommit, which expects files, not directories.

This PR adds the -uall flag to git status so that we get the complete path to each newly added file.

Output before:

?? newdir/

Output after:

?? newdir/file1.txt
?? newdir/file2.txt