collectd-formula is a quite simple formula, very stable (most of last changes concerns adding plugins or improving doc), and now that tests are implemented (or should be soon) I think it could be nice to 'upgrade' it to the last standards implemented in template-formula.
I'm mostly thinking about versioning and docs which are, I think, simple to port. (TOFS for example is most time-consuming)
What do you think about this idea?