Due to a limited grep pattern, subjects containing dots like `image.mk`
were falsely reported as problematic. Extend pattern to allow dots.
Signed-off-by: Paul Spooren <mail@aparcar.org>
The formal checks verify the following things:
- Commits does not contain any merge commits
- Signed by a real name
- Commit titles starts with an `<area>:`
- Author name matches signed of name
- Commit message is not empty
Signed-off-by: Paul Spooren <mail@aparcar.org>