New review comment by kymnob on void-packages repository

https://github.com/void-linux/void-packages/pull/48638#discussion_r1485204404

Comment:
> A function calling `_arguments` with at least one action containing a ‘->string' must therefore declare appropriate local parameters:
> 
>     local context state state_descr line
>     typeset -A opt_args
> 
> to prevent `_arguments` from altering the global environment.