patch 8.2.3231: build failure with small features

Problem:    Build failure with small features.
Solution:   Adjust #ifdef.
diff --git a/src/version.c b/src/version.c
index 425f8f3..e6491db 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3231,
+/**/
     3230,
 /**/
     3229,