Why is the <caution> text I'm adding not taking?

[Pau Amma]

Following a Freenode IRC discussion with tsoome on the unadvisability of
using whole disks in vdevs, I wanted to add the following <caution> to
en_US.ISO8859-1/books/handbook/zfs/chapter.xml:

                  <caution>
                    <para>Using an entire disk as part of a bootable
                      pool is strongly discouraged, as this may render
                      the pool unbootable.  Likewise, you should not
                      use an entire disk as part of a mirror or
                      <acronym>RAID-Z</acronym> vdev.  These are
                      because it it impossible to reliably determine
                      the size of an unpartitioned disk.</para>
                  </caution>

below:

                  <para
                      xml:id="zfs-term-vdev-disk"><emphasis>Disk</emphasis>
                    - The most basic type of vdev is a standard block
                    device.  This can be an entire disk (such as
                    <filename><replaceable>/dev/ada0</replaceable></filename>
                    or
                    <filename><replaceable>/dev/da0</replaceable></filename>)
                    or a partition
                    (<filename><replaceable>/dev/ada0p3</replaceable></filename>
).
                    On &os;, there is no performance penalty for using
                    a partition rather than the entire disk.  This
                    differs from recommendations made by the Solaris
                    documentation.</para>

This is similar to the way the <note> is written 2 <listitem>s below. Yet,
my new <caution> fails to appear after "make all install" whereas the
<note> does. Why? Did I make a mistake I'm not seeing?