patch 8.2.3274: macro for printf format check can be simplified

Problem:    Macro for printf format check can be simplified.
Solution:   Add ATTRIBUTE_FORMAT_PRINTF(). (Dominique Pellé, issue #8635)

src/version.c

@@ -755,6 +755,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3274,
 /**/
     3273,
 /**/