Feature request: improve installer message

[muescha]

Description of feature/enhancement

i would like to see the installer message should include the command line for the command

Justification

my tries to run the command ....

/usr/local/Caskroom/little-snitch/3.7.4/Little Snitch Installer.app
Black Screen: command "/usr/local/Caskroom/little-snitch/3.7.4/Little" not found.

'/usr/local/Caskroom/little-snitch/3.7.4/Little Snitch Installer.app'
bash: /usr/local/Caskroom/little-snitch/3.7.4/Little Snitch Installer.app: is a directory

open /usr/local/Caskroom/little-snitch/3.7.4/Little Snitch Installer.app
The files /usr/local/Caskroom/little-snitch/3.7.4/Little, /Users/muescha/Work/github/WWDC/Snitch, and /Users/muescha/Work/github/WWDC/Installer.app do not exist.

open '/usr/local/Caskroom/little-snitch/3.7.4/Little Snitch Installer.app'

Example use case

To complete the installation of Cask little-snitch, you must also
run the installer at

  '/usr/local/Caskroom/little-snitch/3.7.4/Little Snitch Installer.app'

🍺  little-snitch was successfully installed!

to

To complete the installation of Cask little-snitch, you must also
run the installer at

  '/usr/local/Caskroom/little-snitch/3.7.4/Little Snitch Installer.app'

with command:

  open '/usr/local/Caskroom/little-snitch/3.7.4/Little Snitch Installer.app'

🍺  little-snitch was successfully installed!

[vitorgalvao]

I don’t think this is a problem, as you’re the only one I recall mentioning this. Also, open is not mandatory: the point is that you open the app manually, at your leisure.

#24377 is a better solution than shoehorning a message. If more people had complained about this, I’d be more inclined to add it.