Add support for unquoted command strings after --

[Miserlou]

via this comment:

Lovely idea. I have a small amount of "issue" with the way you're doing the command line though. It's more typical to see commandlines of the form:

loop --every 15s --until-success --num 5 ./do_thing.sh

i.e. where you give the command "last" and where if you want to give that command arguments, you use -- to separate:

loop --until-success -- ping -c5 myserver

As a long-time CLI user, having to put the command, and its arguments, first just feels wrong.

Well done on your project though, and +1 for using clap :-)

[Miserlou]

Related: https://github.com/kbknapp/clap-rs/blob/2c86c8eb4cf3688c75e31332ddbd6942dd62c92b/examples/22_stop_parsing_with_--.rs

[mlindner]

+1 This is the normal way command line apps work.

[Miserlou]

Fixed in 0.4.0.