[FrameworkBundle] output failed matched path for clarification

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #11780
| License       | MIT
| Doc PR        | -

Because cygwin resolves the path behind the scenes, it is otherwise very unclear what path is actually used for matching.