Add a print_status to let the user know the module is over

If I have to run the module as a job, sometimes I can't tell if
the module has finished running or not.

Author: wchen-r7

modules/exploits/windows/local/powershell_remoting.rb

@@ -131,6 +131,8 @@ def exploit
 
       Rex.sleep(1)
     end
+
+    print_status("Completed")
   end
 
   def generate_credentials(domain = datastore['SMBDomain'], user = datastore['SMBUser'], pass = datastore['SMBPass'])