[Geany] integrating external tools (e.g. lint)

[AC]

> Usually people are just happy if something works :).

Yeah, sorry about that - coders' curse, I guess...

> I'd thought GNU regex did support non-greedy matching

So did I - after all, it's such an essential tool...
Either way, I'm using an alternative RegEx now:
    error_regex=^([^:]+):([0-9]+)