patch 8.2.3929: using unititialized variable

Problem:    Using unititialized variable.
Solution:   Set the option flags to zero for a terminal option.
diff --git a/src/version.c b/src/version.c
index 1dedcfe..505d3f1 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3929,
+/**/
     3928,
 /**/
     3927,