patch 8.2.2785: Vim9: cannot redirect to local variable

Problem:    Vim9: cannot redirect to local variable.
Solution:   Compile :redir when redirecting to a variable.

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2785,
 /**/
     2784,
 /**/