* Fixed ZeroDivisionError in async_alert() when
shutil.get_terminal_size().columns is 0.
- Update to version 2.5.3
* Changed CommandSet._cmd to a read-only property which never
returns None because it is meant to be called after the
CommandSet is registered. This addresses type checker errors
that occurred if CommandSet._cmd wasn't cast or checked if
None before use.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-cmd2?expand=0&rev=100