* Use the actual filesystem path name (instead of diffoscope's concept of the
source name) to correct APK filename filtering when an APK file is in
another container -- we need to filter the auto-generated "1.apk" instead
of "original-filename.apk". (Closes: reproducible-builds/diffoscope#255)
* Don't call os.path.basename twice.
* Correct grammar in a fsimage.py debug message.
* Add a comment about stripping filenames.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/diffoscope?expand=0&rev=18
