patch 8.2.4543: Coverity warning for refactored tag search code

Problem:    Coverity warning for refactored tag search code.
Solution:   Avoid the warnings.  Update comments.  Add one more test case.
            (Yegappan Lakshmanan, closes #9928)

src/version.c

@@ -750,6 +750,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4543,
 /**/
     4542,
 /**/