patch 8.2.0846: build failure with small features

Problem:    Build failure with small features.
Solution:   Add #ifdef.
diff --git a/src/version.c b/src/version.c
index 16dfa27..0adfc26 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    846,
+/**/
     845,
 /**/
     844,