The `sed` expression wasn't actually matching the main output, so we
weren't recursing into the subcommands. Update the syntax to match the
current output and add a check so we don't miss that happening again.
Add a check that the help output is only printed once in all
circumstances. Also add a check for proper handling of non-existent
commands.
Closes: #1126
Approved by: cgwalters
I noticed in the static deltas tests, there were some tests that
should have been under `-o pipefail` to ensure we properly propagate
errors.
There were a few places where we were referencing undefined variables.
Overall, this is clearly a good idea IMO.
Recursive over ostree and all subcommands, and check that --help
is supported, properly outputs to standard out, and exits
with a 0 exit status. Check that for commands with subcommands,
they produce the help output to standard error when run with no arguments.
https://bugzilla.gnome.org/show_bug.cgi?id=737194