patch 8.2.4219: reading before the start of the line

Problem:    Reading before the start of the line.
Solution:   Check boundary before trying to read the character.
diff --git a/src/version.c b/src/version.c
index 9dcf349..a3efb04 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4219,
+/**/
     4218,
 /**/
     4217,