<para>
The IN and CH class names overlap with the IN and CH top level
- domains names. Either use the <option>-t</option> and
+ domain names. Either use the <option>-t</option> and
<option>-c</option> options to specify the type and class,
use the <option>-q</option> the specify the domain name, or
use "IN." and "CH." when looking up these top level domains.
<para>
The <option>-q</option> option sets the query name to
- <parameter>name</parameter>. This useful do distinguish the
+ <parameter>name</parameter>. This is useful to distinguish the
<parameter>name</parameter> from other arguments.
</para>