Fixed typo in filter description authentification instead of authentication

fail2ban/tests/files/logs/sshd

@@ -150,6 +150,6 @@ Apr 27 13:02:04 host sshd[29116]: input_userauth_request: invalid user root [pre
 Apr 27 13:02:04 host sshd[29116]: Received disconnect from 1.2.3.4: 11: Normal Shutdown, Thank you for playing [preauth]
 
 # Match sshd auth errors on OpenSUSE systems
-# failJSON: { "time": "2015-04-16T20:02:50", "match": true , "host": "222.186.21.217", "desc": "Authentification for user failed" }
+# failJSON: { "time": "2015-04-16T20:02:50", "match": true , "host": "222.186.21.217", "desc": "Authentication for user failed" }
 2015-04-16T18:02:50.321974+00:00 host sshd[2716]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.21.217  user=root