Make it easier to know how to set the advertised address for a server process

[keith-turner]

Is your feature request related to a problem? Please describe.

In Accumulo 2.x the help for the tablet server would show the following.

$accumulo tserver --help
Usage: tserver [options]
  Options:
    -a, --address
      address to bind to
    -h, -?, --help, -help

    -p, -props, --props
      Sets path to accumulo.properties.The classpath will be searched if this 
      property is not set
    -o
      Overrides configuration set in accumulo.properties (but NOT system-wide 
      config set in Zookeeper). Expected format: -o <key>=<value>
      Default: []

Making it easy to know that you needed to run accumulo tsever -a aHostName to advertise the tserver process using aHostName.

In accumulo 4.0.0-SNAPSHOT running help shows the following.

$ ./accumulo tserver --help
Usage: tserver [options]
  Options:
    -h, -?, --help, -help

    -p, -props, --props
      Sets path to accumulo.properties.The classpath will be searched if this 
      property is not set
    -o
      Overrides configuration set in accumulo.properties (but NOT system-wide 
      config set in Zookeeper). Expected format: -o <key>=<value>
      Default: []

And to do the same thing as 2.x this command needs to be run accumulo tserver -o general.process.bind.addr=aHostName. The help does not help you figure this out. I looked at source code to figure this out and it took a while.

Describe the solution you'd like

It would be nice to make this common operation easier. Either add something to help message for servers or bring the -a option back.