usageFooter property
Rendered only on appflight help signup / appflight signup --help
(Command.usageFooter, args package) — unlike description, which
CommandRunner also prints unwrapped in the top-level command list, so
a URL there would break that table's column alignment.
Implementation
@override
String get usageFooter => 'Organizations are onboarded in the app, not '
'here: ${AppLinks.landing}';