- also we modify argv_to_abspath to through a usage error if the name starts with a '-' - add a test currently the tests fail
1. Split alice/bob clocks to avoid races conditions in the tests 2. Wrap ._notify so we can advance the clock after inotify calls in the RealTest (since it takes >0ms to do the "real" notifies)
Signed-off-by: Daira Hopwood <daira@jacaranda.org>