Daemon turns other processes into daemons. There are many tasks that
need to be performed to correctly set up a daemon process. This can be
tedious. Daemon performs these tasks for other processes. This is
useful for writing daemons in languages other than C, C++ or Perl (e.g.
/bin/sh, Java).
ClosesHomebrew/homebrew#8092.
Signed-off-by: Jack Nagel <jacknagel@gmail.com>