Added a Meaningful error msg for control server port taken (#3204)

* Caught Bind error and added a meaningfull erro mesaage

* removed comment

* rubocop lint fix

* cleanup

* raised std err

* Re-raised the actual error. Catching EADDRINUSE instead of Std err

lib/puma/runner.rb

@@ -75,7 +75,11 @@ def start_control
       control = Puma::Server.new app, nil,
         { min_threads: 0, max_threads: 1, queue_requests: false, log_writer: @log_writer }
 
-      control.binder.parse [str], nil, 'Starting control server'
+      begin
+        control.binder.parse [str], nil, 'Starting control server'
+      rescue Errno::EADDRINUSE, Errno::EACCES => e
+        raise e, "Error: Control server address '#{str}' is already in use. Original error: #{e.message}"
+      end
 
       control.run thread_name: 'ctl'
       @control = control