stream-clone-test: simplify the --uncompressed alias check To check that --uncompressed is an alias we just need to check it trigger a stream clone, we don't need to check anything else.

stream-clone-test: drop an automatic pattern replacement That pattern is nice, but it prevent us to glob the number of bytes when we don't care about them. We don't care about them more often that what we currently checks so dropping this pattern will help use to simplify various tests.