Feature request: print xrandr command

[dajuno]

Hi,

first thank you for this great package!
I've found myself in many situations where I would want to modify a saved autorandr config slightly.
For instance, set --right-of instead of --below. Or just change the name of a display.
In such situations, it would be great to have an autorandr option (similar to --config) to output the xrandr command that produced the present config.

Thanks