Do not tell authentication method name or version information

src/pam.c

@@ -65,7 +65,7 @@ int pam_sm_authenticate(pam_handle_t *pamh, int flags,
 		return (PAM_IGNORE);
 	}
 
-	log_info("pam_usb v%s\n", PUSB_VERSION);
+	//log_info("pam_usb v%s\n", PUSB_VERSION);
 	log_info("Authentication request for user \"%s\" (%s)\n",
 			user, service);