Adjusted ballot email text. Fixes ietf-tools#3208. Commit ready for merge.

 - Legacy-Id: 18911

Author: rjsparks

ietf/templates/doc/ballot/ballot_comment_mail.txt

@@ -7,7 +7,7 @@ introductory paragraph, however.)
 
 {% if doc.type_id == "draft" and doc.stream_id != "irtf" %}
 Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html
-for more information about IESG DISCUSS and COMMENT positions.
+for more information about DISCUSS and COMMENT positions.
 {% endif %}
 
 The document, along with other ballot positions, can be found here: