Maarten Mulders opened MNG-7332 and commented

Remove support for the --define option.

Rationale:

1. We can't get that to work properly with Commons CLI 1.5
2. Most likely, most of our users use -D as they think they're setting system properties (which happens to be a side effect of -D, not its goal)

Not only remove code, also update website/docs for it.

Issue Links:

• MNG-7217 Completely update CLI handling according to Commons CLI 1.5 documentation
  ("blocks")

Remote Links:

• GitHub Pull Request #124
  
• GitHub Pull Request #611
  

Backported to: 4.0.0-alpha-2