find_supervisor glitchy on osx
Created by: piotrb
For some reason on osx Sys::ProcTable seems to return a space padded string for the cmdline. ie:
"foo_bar_supervisor "
Not sure how widespread this is .. but the whole test suite for sponges seems to hate the world on osx (every test failing because of the process name mismatches)
I added a monkeypatch locally to just strip the cmdline but looks like every test relies on this working right as well so that didn't seem like much of a solution (was going to attach a pull request with this .. but it seems like a bigger mess)