Restore proper spelling of the <command> XML tag to prevent release note
text from getting mangled.
<listitem>
<para>
Added a new command line option to <command>dig</command>:
- <comand>+[no]unexpected</comand>. By default, <command>dig</command>
+ <command>+[no]unexpected</command>. By default, <command>dig</command>
won't accept a reply from a source other than the one to which
it sent the query. Add the <command>+unexpected</command> argument
to enable it to process replies from unexpected sources.