patch 8.2.0439: :disassemble has minor flaws

Problem:    :disassemble has minor flaws.
Solution:   Format the code.  Use (int) instead of (char) for %c.
            (also by James McCoy, closes #5831)
diff --git a/src/version.c b/src/version.c
index 82d93e5..009266b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    439,
+/**/
     438,
 /**/
     437,