Watch process

For the moment I use 'flag.PrintDefaults()' in case the command line arguments aren't correctly specified. The output is : 
-bind-port=0: port to be watched for binding by psdock(0 means no port is monitored)
  -envVars="": arguments passed to the launched command
  -log-prefix="": prefix for logging the output of the launched process
  -log-rotation="daily": lifetime of a single log file.
  -process="": process to be executed by psdock
  -stdout="os.Stdout": redirection path for the stdout/stderr of the launched process
  -user-name="developpeur": name of the user launching the process
  -web-hook="": hook triggered by psdock in case of special events