-<!-- vim:ft=sgml -->
+<!-- vim:ft=sgml
+-->
<!doctype linuxdoc system>
<book>
name="$index_format"> variable's ``%y'' and
``%Y'' escapes can be used to expand ``X-Label:'' fields in the
index, and Mutt-ng's pattern-matcher can match regular expressions to
-``X-Label:'' fields with the ``~y'' selector. ``X-Label:'' is not a
+``X-Label:'' fields with the ``˜y'' selector. ``X-Label:'' is not a
standard message header field, but it can easily be inserted by procmail
and other mail filtering agents.