Mainly documentation updates.
diff --git a/runtime/doc/editing.txt b/runtime/doc/editing.txt
index a89d8bb..a882d99 100644
--- a/runtime/doc/editing.txt
+++ b/runtime/doc/editing.txt
@@ -1331,6 +1331,7 @@
 
 Vim is able to write files encrypted, and read them back.  The encrypted text
 cannot be read without the right key.
+{only available when compiled with the |+cryptv| feature}  *E833*
 
 The text in the swap file and the undo file is also encrypted.