Add -o option to doclifter.xml

doclifter.xml

@@ -18,6 +18,7 @@
 
 <cmdsynopsis>
   <command>doclifter</command>  
+  <arg choice='opt'>-o <replaceable>output-location</replaceable></arg>
   <arg choice='opt'>-e <replaceable>output-encoding</replaceable></arg>
   <arg choice='opt'>-i <replaceable>input-encodings</replaceable></arg>
   <arg choice='opt'>-h <replaceable>hintfile</replaceable></arg>
@@ -107,6 +108,13 @@ file is translated separately (but hints are retained, see below); the
 suffix <filename>.xml</filename> is given to the translated output.</para>
 <variablelist>
 <varlistentry>
+<term>-o</term>
+<listitem>
+<para>Set the output location where files will be saved. Defaults to current
+working directory.</para>
+</listitem>
+</varlistentry>
+<varlistentry>
 <term>-h</term>
 <listitem>
 <para>Name a file to which information on semantic hints gathered