Document 'n' and 'o' flags in index

diff --git a/doc/manual.xml.head b/doc/manual.xml.head
index 4acf52b3e9a33257b05a6d5a10312fb23a8d3d78..f83d45a608dcb28344f10c863078d8fcd91faa0c 100644 (file)
--- a/doc/manual.xml.head
+++ b/doc/manual.xml.head
@@ -710,6 +710,8 @@ linkend="to-chars">$to_chars</link> variable.
 <row><entry>s</entry><entry>message is signed</entry></row>
 <row><entry>!</entry><entry>message is flagged</entry></row>
 <row><entry>*</entry><entry>message is tagged</entry></row>
+<row><entry>n</entry><entry>thread contains new messages (only if collapsed)</entry></row>
+<row><entry>o</entry><entry>thread contains old messages (only if collapsed)</entry></row>
 </tbody>
 </tgroup>
 </table>