Use start.sh to start Pro via go_pro command

start.sh (installed with community/pro on apt installs) automatically
starts dependency services (such as postgresql).

Author: bturner-r7

lib/msf/ui/console/command_dispatcher/core.rb

@@ -2695,9 +2695,9 @@ def launch_metasploit_browser
 	end
 
 	def start_metasploit_service
-		cmd = "/usr/sbin/service"
+		cmd = File.expand_path(File.join(msfbase_dir, '..', '..', '..', 'scripts', 'start.sh'))
 		return unless ::File.executable_real? cmd
-		%x{#{cmd} metasploit start}.each_line do |line|
+		%x{#{cmd}}.each_line do |line|
 			print_status line.chomp
 		end
 	end