Improve handling of error message

[kleuter]

Any idea how this can be fixed?

[kleuter]

Ok, it happened because I used a real password to notarize instead of an app-specific password.

Anyway a proper handling of the output of xcrun is required:

Error: Unable to validate your application. Please sign in with an app-specific password. You can create one at appleid.apple.com.

to have a meaningful error message.

Thanks for the tool!

[kleuter]

Any progress on this? Thanks.