Bug 19892: (follow-up) Replace one more instance

Bug 19892: (follow-up) Replace one more instance

This patch replaces one more instance of [% IF ( numbersphr ) %].

To test, apply the patch and view the source of the OPAC home page.

With the OPACNumbersPreferPhrase system preference set to 'use,' you
should find this in the HTML source:

<option value="callnum,phr">Call number</option>

With the preference set to 'don't use,' you should find this:

<option value="callnum">Call number</option>

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>