Bug 28154: Fix encoding issues on Koha-pref.pot

Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

misc/translator/xgettext-pref

@@ -104,7 +104,7 @@ for my $file (@files) {
     }
 }
 
-Locale::PO->save_file_fromhash($output, $pot);
+Locale::PO->save_file_fromhash($output, $pot, 'utf8');
 
 sub add_prefs {
     my ($file, $context, $prefs) = @_;