suppress this constant RVM checks if QUIET environment variables is set.

latest versions of capistrano are so slow that these redundant checks add lots of time to deploys and are only necessary for debugging.

maybe there's a more cap-fu way to suppress them; but for me they run for every deploy and invoke target.

it doesn't help that EACH  cap execute command run in its own sshkit session .... grind, wait, yawn.