Land rapid7#1957 - fix User-agent typos for maxthon_history_xcs.rb

Author: wchen-r7

modules/exploits/windows/browser/maxthon_history_xcs.rb

@@ -51,8 +51,8 @@ def initialize(info = {})
 	end
 
 	def on_request_uri(cli, request)
-		if request.headers['User-agent'] !~ /Maxthon\/3/ or request.headers['User-agent'] !~ /AppleWebKit\/534.12/
-			print_status("Sending 404 for User-Agent #{request.headers['User-agent']}")
+		if request.headers['User-Agent'] !~ /Maxthon\/3/ or request.headers['User-Agent'] !~ /AppleWebKit\/534.12/
+			print_status("Sending 404 for User-Agent #{request.headers['User-Agent']}")
 			send_not_found(cli)
 			return
 		end