Avoid deep Python references.
<listitem>
<para>
Force this charset to be the current default charset instead of
- sys.getdefaultencoding().
+ the current locale.
</para>
</listitem>
</varlistentry>
<listitem>
<para>
Append mask to the list of error content types; if the message to
- decode has a part of this type the program will raise ValueError.
+ decode has a part of this type the program fails with ValueError.
</para>
</listitem>
</varlistentry>