"display post-install message" after pkg install/update
Feature request: Might be a good idea, to, in general, let "pkg install"
display a ZIP comment after extracting all files or a string from the
I also thought about it, there are more situations that would make it
useful, for example DJGPP requires a specific environment variable to be
set, otherwise it crashes... That's the kind of things that could be
displayed as a "post-install message".