+ <varlistentry>
+ <term><option>-@</option> |
+ <option>--append-binary-args</option>
+ </term>
+ <listitem>
+ <para>append extra variable args from file (use - to read
+ from stdin). Data in file is appended as command line
+ arguments to the boot loader command, with no modification to
+ the data, so you can pass any binary or text data necessary.</para>
+ </listitem>
+ </varlistentry>