Question about HUP + USR2 + QUIT

[Alex Sharp]

Currently, on deploys we're sending HUP to the "old" master to reload
the config, and then we send it a USR2 to reload the app code. Is this
redundant -- i.e. does USR2 reload the unicorn config, or just the
application code? I am under the impression that USR2 forks a new
master from the old, and only reloads app code, and not the unicorn
config, but I just wanted to double check. Thanks.

- alex