run-tests: fixed warn detection on failures with too many output The state "warned" was reported too often. The problem fixed here is that warnonly was only reset when a line did not match. When there was a line too much, warnonly remained set. Fix this by setting more states to warnonly. More negative testing (testing on result "Failed") has been done this time.

run-tests: fixed warn detection on detecting warn only for lines The state "warned" was reported too often. The main problem was that "False == 0" is true in python. Therefore use an empty string instead of 0 for reporting warn only for a line. The other problem is fixed in the next patch.

obsolete: extract encoding of marker for pushkey from the list key function We now have a function taking a list and marker and returning an encoded version. This will allow obsolescence marker exchange experimentation to easily pushkey-encode markers to be pushed after selection.

solaris: diff -u emits "No differences encountered" Solaris diff -u isn't silent when two files are identical, and tests that don't account for that will fail. Fix those tests, and introduce a check that prevents reintroduction.