Bug 11944: Fix encoding issue for the "Did you mean" feature

Bug 11944: Fix encoding issue for the "Did you mean" feature

Test plan:
1/ Go on admin/didyoumean.pl and enable the feature for the OPAC
2/ Generate and use the french templates
3/ Launch a search at the OPAC
4/ You should see correctly encoded message

Signed-off-by: Paola Rossi <paola.rossi@cineca.it>
Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Signed-off-by: Dobrica Pavlinusic <dpavlin@rot13.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>