return source only by command

plugins/gifeye.lua

@@ -1,9 +1,13 @@
 local function run(msg, matches)
 	local receiver = get_receiver(msg)
 	local url = 'http://i.gifeye.com/'..matches[1]..'.gif'
-		print("GIF URL: "..url)
+	  	print("GIF URL: "..url)
 		send_document_from_url(receiver, url)
+	  if string.starts(msg.text, '/ge') or string.starts(msg.text, '/gifeye') then
 		return 'Source: http://gifeye.com/'..matches[1]
+	  else
+	  	return
+	  end
 end
 
 return {