Re: [Libguestfs] [PATCH nbdkit] tests: Cancel trap in cleanup function to avoid recursive traps.

In these test functions, when a test fails, the bash ‘trap’ command causes the cleanup function to be called. However bash does not annul or cancel the traps when cleanup is called, so at the end of the cleanup function when ‘exit’ is called, cleanup is called recursively. Avoid this by cancelling the traps at the top of the cleanup function. Also an extra debugging message is emitted here giving the value of $status which can be useful.