Use fromMaybe to safely extract optTty value
Comment out debug output re: command line options
Fix output of the "show" command
Prevent attempt to get daemon pid if not reloading config
Fix regex for detecting port config lines in conf file
Fix parsing & output of flow control config
Disambiguate -h option.
Simplify "when ( not ..." to unless ...
Make "update" command respect the -C option
Make --help work when no command argument given
Update README with most recent --help output