* added feature flag to control whether CmdMixin adds rc, out and err to the result of the module
* added changelog fragment
* changed from a global flag to parameters in run_command
* updated changelog
* fixed brainless copy-paste of yours truly
(cherry picked from commit c5cbe2943b)
Co-authored-by: Alexei Znamensky <103110+russoz@users.noreply.github.com>
