tests: show actual output in test-patchbomb.t
Drop fixheader and decode base64 encoded content and show non-ascii content.
tests: test findexe() access check fixed in
58f96703a9ab
check-code: fix return code initialization
Don't crash when nothing is tested, but return failure when other files than
the last one fails.
tests: make test-commandserver.py independent of line ending and slash direction