ability to add administrator via command line

Original LP Author: Jeff Marshall , LP Link: https://bugs.launchpad.net/bugs/1004056

How do I add another person as an administrator to either a single

list or to my full mailman installation? I don't see this in either Postorius or the command line tools.

It would be useful to have a command line interface for adding extra administrators to a mailing list.

It could either be added:

1. to the existing 'members' subcommand as an additional option on the --add command (like --admin --add blah@blah.com)
2. to the existing 'members' subcommand as a separate post-add step (step 1: --add blah@blah.com step 2: --admin blah@blah.com to add admin rights to that existing subscriber)
3. a new subcommand

#2 (closed) seems like a reasonable approach. #1 (closed) is limited because you could only give admin rights when first adding a user.