_docker_run and _docker_create had only one differing line.
This refactoring features:
- direct completion for both commands to the same function
- factor out the common arguments, sort & format them nicely
- compute the argument for _docker_pos_first_nonflag.
Signed-off-by: Harald Albers <github@albersweb.de>
Upstream-commit: 46b104bd3977c4777b0d99ba6c190f37ae780245
Component: engine
74d75a87de