Fixed a typo in the sql login server causing client hang after entering a wrong password.

git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@11305 54d463be-8e91-2dee-dedb-b68131a5f0ec

src/login_sql/login.c

@@ -1457,7 +1457,7 @@ int parse_login(int fd)
 					}
 				}
 				else
-					memset(WFIFOP(fd,0), '\0', 20);
+					memset(WFIFOP(fd,3), '\0', 20);
 				WFIFOSET(fd,23);
 			}