patch 8.2.1992: build fails with small features

Problem:    Build fails with small features.
Solution:   Add #ifdef.
diff --git a/src/version.c b/src/version.c
index 4f03b26..0d9cf70 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1992,
+/**/
     1991,
 /**/
     1990,