patch 8.2.3328: Coverity error for not checking return value

Problem:    Coverity error for not checking return value.
Solution:   Check value is not negative.
diff --git a/src/version.c b/src/version.c
index 12a78a8..4041be4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3328,
+/**/
     3327,
 /**/
     3326,