sys/log: fix prototype
@@ -139,7 +139,7 @@ typedef void log_append_cb(struct log *log, uint32_t idx);
*
* @param log The log that is about to rotate
*/
-typedef void log_notify_rotate_cb(struct log *log);
+typedef void log_notify_rotate_cb(const struct log *log);
#ifdef __cplusplus
}
