commit 9ef5cfe781e49849aa9338947956d7ccbf8cbf6e
Author: Daniel Swanson <popcorn.tomato.dude@gmail.com>
Date:   Thu Jul 22 10:25:48 2021 -0500

    add <e w=""> to dix.rnc to be consistent with dix.dtd

diff --git a/lttoolbox/dix.rnc b/lttoolbox/dix.rnc
index 4df294c..19f7f16 100644
--- a/lttoolbox/dix.rnc
+++ b/lttoolbox/dix.rnc
@@ -65,7 +65,8 @@ attlist.e &=
   attribute alt { text }?,
   attribute v { text }?,
   attribute vl { text }?,
-  attribute vr { text }?
+  attribute vr { text }?,
+  attribute w { text }?
 # r: restriction LR: left-to-right,
 # RL: right-to-left