[REQUEST] Pass options to OSDisplay

[dzg]

First, thanks so much for this!

Would be great to have the option of passing some options to OSDisplay, like

   -l	value
   -i	path to image-file
   -m	message (string)
   -d	delay

[kfix]

ugh, I should have never merged support for that thing.

someone calling ddccdl has the wherewithal to also call OSDisplay to show what they want to see.

ddccdl just needs to be able to give some structured output that the wrapper can parse to know what's been changed

[kfix]

or maybe ddccdl can accept hook-script argument that its called with a stdin/environment with said structured output of changes.

OSDisplay could then be made to parse that.