patch 8.1.0788: cannot build with tiny features

Problem:    Cannot build with tiny features.
Solution:   Adjust #ifdefs.
diff --git a/src/version.c b/src/version.c
index a47c731..fb1e356 100644
--- a/src/version.c
+++ b/src/version.c
@@ -792,6 +792,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    788,
+/**/
     787,
 /**/
     786,