Emil Velikov authored Jul 12, 2021 and Emil Velikov committed Jul 12, 2021

Current implementation supports space separated short and long opts.
Additionally it handles space-less short opts and = long opts.

The latter two are less common and adding support for them in the shell
completion is cumbersome. So drop them from the --help and man pages.

The program still supports them so existing users will still work.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>