Support options anywhere on the command-line

[fitzsim]

Hi,

It would be nice if CLON supported having options anywhere on the
command line.

For example, suppose I want to add an option at the end of a command I
just typed. Assume the command has file arguments. And suppose it
gave me more output than I wanted, so I want to also pass the -q
option meaning "quiet". In the terminal, I would like to type:

C-p SPC -q RET

instead of, e.g.:

C-p C-a M-f SPC -q RET

This feature would allow CLON to match the behaviour of other
command-line parsing libraries which accept options anywhere except
after "--".

[alessiostalla]

I would like to have that as well. Especially for modern (git-like) command-line tools, program command subcommand --args is common.