isodoc.rng in metanorma-ietf-3.3.1

- old
+ new

@@ -15,11 +15,11 @@
   DO NOT introduce a namespace here. We do not want a distinct namespace
   for these elements, and a distinct namespace for any grammar inheriting
   these elements; we just want one namespace for any child grammars
   of this.
 -->
-<!-- VERSION v1.2.12 -->
+<!-- VERSION v1.3.0 -->
 <grammar xmlns:a="http://relaxng.org/ns/compatibility/annotations/1.0" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
   <include href="reqt.rng"/>
   <include href="basicdoc.rng">
     <define name="amend">
       <element name="amend">
@@ -143,9 +143,12 @@
         </optional>
         <optional>
           <attribute name="update-type">
             <data type="boolean"/>
           </attribute>
+        </optional>
+        <optional>
+          <attribute name="style"/>
         </optional>
         <oneOrMore>
           <ref name="PureTextElement"/>
         </oneOrMore>
       </element>