Use `--libxo=json` to parse jls output about libioc

[igalic]

we can probably generalize that, whenever we use an exec instead of a library.

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list of utilities that have been converted already: https://wiki.freebsd.org/LibXo

[gronke]

Implemented in #9 - thanks 😄

@igalic btw. you can simply write "fixes #XYZ" in your PR description to automatically close referenced issues. https://help.github.com/articles/closing-issues-using-keywords/

[igalic]

yeah, but, fixes is a lie :P

[gronke]

haha

[skarekrow]

I think this can be closed as it was implemented. Reopen if I'm wrong :D