The __git_ps1() prompt function would not show an untracked state
when all the untracked files are outside the current working
directory.
Signed-off-by: NCody A Taylor <codemister99@yahoo.com>
Helped-by: NSZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: NJunio C Hamano <gitster@pobox.com>