vol_id: document -L

extras/volume_id/vol_id.8

@@ -35,13 +35,20 @@ print the filesystem type
 .PP
 \fB\-l\fR
 .RS 4
-print the label of a volume
+print the safe version of volume label suitable for use as filename. Use
+\fB\-L\fR
+to print literal label
 .RE
 .PP
 \fB\-u\fR
 .RS 4
 print the uuid of a volume
 .RE
+.PP
+\fB\-L\fR
+.RS 4
+print raw volume label
+.RE
 .SH "ENVIRONMENT"
 .PP
 \fBUDEV_LOG\fR

extras/volume_id/vol_id.xml

@@ -59,7 +59,10 @@
           <varlistentry>
             <term><option>-l</option></term>
             <listitem>
-              <para>print the label of a volume</para>
+	      <para>
+		print the safe version of volume label suitable for
+		use as filename. Use <option>-L</option> to print literal label
+	      </para>
             </listitem>
           </varlistentry>
           <varlistentry>
@@ -68,6 +71,14 @@
               <para>print the uuid of a volume</para>
             </listitem>
           </varlistentry>
+          <varlistentry>
+            <term><option>-L</option></term>
+            <listitem>
+	      <para>
+		print raw volume label
+	      </para>
+            </listitem>
+          </varlistentry>
         </variablelist>
       </refsect1>