Prefix and postfix text in command usage string

[veeg]

Enable the ability to add additional text before and after usage text.
Currently, my master argument parser looks like this.

 prog {OPTIONS} [COMMAND]

I would like it to look like this

 prog {OPTIONS} [COMMAND] [<args>]

even tho the [<args>] bit is not backed up by any args from the master parser.

When the command parser gets a --help, i want the usage text to say

prog COMMAND {OPTIONS} [X] [Y] ......

This requires the disabling of the auto-appended argv[0] argument, and replace it with a string of my choice.

[Taywee]

argv[0] isn't actually automatically appended if you set Prog on the ArgumentParser manually, so the prefix is unnecessary, as you can set it there. I will look at adding this postfix text as an option, though.

[Taywee]

This is completed on tag 3.0.4

[veeg]

Ahh, lovely.

For reference, the 'prefix' can be added like this:

    parser.Prog("prefix string")

I may have failed to read the documentation thoroughly enough, but that is a a key point to bring up
in some overall documentation, just not API documentation.

[Taywee]

That's true. Being a header library that I've thrown together for my own use, it's easy for me to overlook something that somebody else might not see; it is also very young still.