<term><constant>-EINVAL</constant></term>
<listitem><para>An invalid argument has been passed. This includes
- specyfing an empty mask in <parameter>options</parameter> or a mask
- which constains values different than a combination of
+ specifying an empty mask in <parameter>options</parameter> or a mask
+ which contains values different than a combination of
<constant>WEXITED</constant>, <constant>WSTOPPED</constant>, and
<constant>WCONTINUED</constant>.
</para></listitem>