#17 patterm misspell for proftpd

[George L. Yermulnik]

I've noticed that sshguard doesn't block incorrect password attempts for proftpd.
Guess, the code has a misspell in file src/parser/attack_scanner.l (on line 188):

 /\* another log entry from ProFTPd \*/
{HOSTADDR}" ("[[]+"["                                           { BEGIN(proftpd_loginerr); return PROFTPD_LOGINERR_PREF; }
"]) - USER "{WORD}" (Login failed): ".*                         { BEGIN(INITIAL); return PROFTPD_LOGINERR_SUFF; }

Shouldn't ("[[]+"[" be ("[^\[]+"[" ?