add flag -log-only-denied

[flixr]

To reduce unnecessary logs but not be completely quiet:

• log decision in single line
• add flag -log-only-denied

[anderseknert]

You'll need to add a sign-off to your commit for the DCO check before this can be merged though.

Just:

git commit --amend --signoff
git commit push --force

[flixr]

done..