patch 8.2.0735: Vim9: using unitialized memory

Problem:    Vim9: using unitialized memory.
Solution:   Clear the arg_lvar field.
diff --git a/src/version.c b/src/version.c
index 19920de..96ca889 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    735,
+/**/
     734,
 /**/
     733,