Sync ubus familly tools.

src/3P/ubox/log/syslog.c

@@ -11,6 +11,12 @@
  * GNU General Public License for more details.
  */
 
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE == KERNEL_VERSION(2,6,21)
+typedef unsigned short  sa_family_t;
+#endif
+
 #include <linux/un.h>
 
 #include <sys/types.h>
@@ -300,6 +306,4 @@ log_shutdown(void)
 	close(slog.fd.fd);
 	close(klog.fd.fd);
 	free(log);
-	regfree(&pat_prio);
-	regfree(&pat_tstamp);
 }