test-clonebundles: simplify matching to be less flavor depends
We keep the files and bytes output for the first call, but then we mostly check
that we are being served a stream-clone bundle, not the actual content and size
of the bundle. That aspect being tested by the stream clone test themselves.
skip ignored directories if -i or --all not specified
$ hg init t
$ cd t
$ echo 'ignored' > .hgignore
$ hg ci -qA -m init -d'2 0'
$ mkdir ignored
$ ls
ignored
$ hg purge -v --no-confirm
$ ls
ignored