Display subcommand short desc in synopsis

[justin-corn]

When using nested subcommands, subcommand description text is not displayed next to each subcommand in the synopsis SUBCOMMANDS section. This would be helpful for usage understanding, and a cursory reading of the source for zio-cli seems to suggest that it was originally intended behavior.

Given a subcommand hierarchy like this

foo
└── a
    └── one
        ├── blue
        └── red

the command foo a one --help produces

SYNOPSIS

    foo   <command> [<args>]

SUBCOMMANDS

      - red

      - blue

The expected output would have some brief summary of subcommands red and blue to the right of their enumeration.

[justin-corn]

I think this can be closed, I probably wasn't using the lib correctly. I've been working on a fix for #113 , so it's possible that fix is doing the trick, but either way I can see subcommand descr displayed correctly in these cases; this issue therefore seems like a duplicate or non-issue.