patch 8.2.3943: compiler warning from gcc for uninitialized variable

Problem:    Compiler warning from gcc for uninitialized variable.
Solution:   Initialize variable. (closes #9429)
diff --git a/src/version.c b/src/version.c
index 70372a6..c7644a4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -750,6 +750,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3943,
+/**/
     3942,
 /**/
     3941,