Hi,

I have an issue very similar to #974 but more general: whenever I use git grep and a file with a path that contains an hyphen is matched, the output is incorrect, the hyphen is replaced by a colon.

To reproduce:

mkdir /tmp/delta-test
cd /tmp/delta-test
echo content > foo-bar
git init
git add .
git commit -m 'Initial'
git grep content

The git --no-pager output is foo-bar:content.

The git delta output is foo:bar:content