Add or clean up some debugging in various spots. Fix some typos and

Add or clean up some debugging in various spots.  Fix some typos and
incorrect comments, and removed some duplicated comments.  Only display
(count/level) in summary if more than 1 attempt needed.  $line returned
from check_tcp() should be a string.  Close filehandle outside of timeout
eval in case alarm goes off; else we'll orphan a FIFO.  Allow --refresh or
--nosleep to run even if there is a spong-client already running (original
behavior).  Pass debug value when doing a restart.  Allow spaces or comma
to separate services in spong.hosts.