* adds squashing to objects, which allows them to be squashed down
to a final "view" before post_validate to avoid expensive evaluations
of parent attributes
Working on the test suite, I tried to replace a call to sudo to a
call to su, and found out that I can't change user to 'nobody'
without changing the option become_flags in ansible.cfg
As this would be dependent on the user and the task, it make more sense
to push the setting there.
tasks were overriding commandline with their defaults, not with the
explicit setting, removed the setting of defaults from task init and
pushed down to play context at last possible moment.
fixes#13362
James Cammarata
Michael Scherer
Dag Wieers
Brian Coca
Toshio Kuratomi
Matt Martz