Add testcase

fail2ban/tests/files/logs/ejabberd-auth

@@ -14,3 +14,7 @@ I(<0.1440.0>:ejabberd_c2s:813) : ({socket_state,tls,{tlssock,#Port<0.6910>,#Port
 
 # failJSON: { "time": "2015-03-19T13:57:35", "match": true , "host": "192.0.2.6" }
 2015-03-19 13:57:35.805 [info] <0.585.0>@ejabberd_c2s:wait_for_sasl_response:965 ({socket_state,p1_tls,{tlssock,#Port<0.6434>,#Port<0.6436>},<0.584.0>}) Failed authentication for robin@example.com from 192.0.2.6
+
+# 17.06 "new" format:
+# failJSON: { "time": "2017-07-29T08:24:04", "match": true , "host": "192.0.2.3" }
+2017-07-29 08:24:04.773 [info] <0.6668.0>@ejabberd_c2s:handle_auth_failure:433 (http_bind|ejabberd_bosh) Failed c2s PLAIN authentication for test@example.ch from ::FFFF:192.0.2.3: Invalid username or password