Bug 16233 Unclosed <strong> in opac-facets.inc

Bug 16233 Unclosed <strong> in opac-facets.inc

To test:
1/ Do a search in the OPAC
2/ Restrict to only available items
3/ Notice the authors now appear bold
4/ Apply patch
5/ Refresh the page
6/ Authors should now look normal again

Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Brendan Gallagher <brendan@bywatersolutions.com>
(cherry picked from commit e60182c2f033a2b5eac578eb7bac355e03eb6b76)
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>