patch 7.4.812
Problem:    Gcc sanitizer complains about using a NULL pointer to memmove().
Solution:   Only call memmove when there is something to move. (Vittorio
            Zecca)
diff --git a/src/version.c b/src/version.c
index 6546f6a..7298a79 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    812,
+/**/
     811,
 /**/
     810,