Bug 28193: (follow-up) Correct OpacLoginInstructions in login modal

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>

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

koha-tmpl/opac-tmpl/bootstrap/en/includes/masthead.inc

@@ -389,9 +389,9 @@
                             <fieldset class="brief">
                                 <label for="muserid">Login:</label><input type="text" id="muserid" name="userid" />
                                 <label for="mpassword">Password:</label><input type="password" id="mpassword" name="password" />
-                                [% IF Koha.Preference( 'OpacLoginInstructions' ) %]
+                                [% IF ( OpacLoginInstructions ) %]
                                     <div id="nologininstructions-modal" class="nologininstructions">
-                                        [% Koha.Preference( 'OpacLoginInstructions' ) | $raw %]
+                                        [% PROCESS koha_news_block news => OpacLoginInstructions %]
                                     </div>
                                 [% END %]
                                 [% IF Koha.Preference('OpacPasswordChange') && Categories.can_any_reset_password %]