patch 8.2.4985: PVS warns for possible array underrun

Problem:    PVS warns for possible array underrun.
Solution:   Add a check for a positive value. (closes #10451)
diff --git a/src/version.c b/src/version.c
index 40b81d1..09bf61d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4985,
+/**/
     4984,
 /**/
     4983,