Warning messages for the RemoveModule command should be improved

Build tested: 1.1.0-1 beta

The warning messages can be better:

mcsadmin> removemodule s2pm1,s2pm2
removemodule Fri Sep 8 15:40:30 2017

!!!!! DESTRUCTIVE COMMAND !!!!!

This command does a stop and remove a module from the MariaDB ColumnStore System
Do you want to proceed: (y or n) [n]:

Suggestion:

This command stops and removes module(s) from the MariaDB ColumnStore system