--- src/ex_docmd.c.orig	2021-11-16 12:09:23 +0000
+++ src/ex_docmd.c	2021-11-16 12:10:38 +0000
@@ -4500,6 +4500,7 @@
     void
 ex_ni(exarg_T *eap)
 {
+    return;
     if (!eap->skip)
 	eap->errmsg =
 		_("E319: Sorry, the command is not available in this version");