Use fail_with when failing instead of print_error

modules/exploits/multi/http/openx_backdoor_php.rb

@@ -86,9 +86,9 @@ class Metasploit3 < Msf::Exploit::Remote
 				},
 			}, 0.1)
 		rescue ::Rex::ConnectionError => e
-			fail_with(::Msf::Exploit::Failure::Unreachable, e.message)
+			fail_with(Failure::Unreachable, e.message)
 		rescue ::OpenSSL::SSL::SSLError
-			print_error("The target failed to negotiate SSL, is this really an SSL service?")
+			fail_with(Failure::BadConfig, "The target failed to negotiate SSL, is this really an SSL service?")
 		end
 
 		response