not be possible to distinguish between paths which match a
pattern and those which don't.
+--no-index::
+ Don't look in the index when undertaking the checks. This can
+ be used to debug why a path became tracked by e.g. `git add .`
+ and was not ignored by the rules as expected by the user or when
+ developing patterns including negation to match a path previously
+ added with `git add -f`.
+
OUTPUT
------