<para>
Sets character set for Z39.50 negotiation. Most targets do not support
this, and some will even close connection if set (crash on server
- side or similar). If set, the value is most likely to be "UTF-8".
+ side or similar). If set, you probably want to set it to
+ <literal>UTF-8</literal>.
</para>
</listitem>
</varlistentry>