Backport #23272
The code for GetFilesChangedBetween uses `git diff --name-only
base..head` to get the names of files changed between base and head
however this forgets that git will escape certain values.
This PR simply switches to use `-z` which has the `NUL` character as the
separator.
Ref https://github.com/go-gitea/gitea/pull/22568#discussion_r1123138096
Signed-off-by: Andrew Thornton <[email protected]>
Co-authored-by: zeripath <[email protected]>
Co-authored-by: techknowlogick <[email protected]>
2f1d968b27