run-tests: introduce --random for running tests in random error
This is convenient when investigating failures one by one to avoid running the
same fixed tests first every time.
[ original upstream message ]
Simon Heimberg <simohe@besonet.ch> [Thu, 21 Mar 2013 08:56:21 +0100] rev 1219
run-tests: only sort files when not given as argument
os.listdir returns the files in any order. This has to be sorted.
But when given as argument, the user should be allowed to set any order.
This restores the behaviour before 9848a94e2a.
[ original upstream message ]