[PATCH] regnual: add missing header

[Bertrand Jacquin]

  regnual.c:32:1: note: ‘memset’ is declared in header ‘<string.h>’
---
 regnual/regnual.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/regnual/regnual.c b/regnual/regnual.c
index 16326e2199ae..e296d51bc53e 100644
--- a/regnual/regnual.c
+++ b/regnual/regnual.c
@@ -26,6 +26,8 @@
  * ReGNUal
  */
 
+#include <string.h>
+
 #include "types.h"
 #include "usb_lld.h"
 #include "sys.h"