MDL-51586 enrol: Enrolment table displays fullname properly.

When the alternatefullnamedisplay was set to something that
didn't contain 'firstname' then nothing would be displayed
for the user's name.

enrol/locallib.php

@@ -1102,13 +1102,14 @@ public function get_users_for_display(course_enrolment_manager $manager, $sort,
      */
     private function prepare_user_for_display($user, $extrafields, $now) {
         $details = array(
-            'userid'           => $user->id,
-            'courseid'         => $this->get_course()->id,
-            'picture'          => new user_picture($user),
-            'firstname'        => fullname($user, has_capability('moodle/site:viewfullnames', $this->get_context())),
-            'lastaccess'       => get_string('never'),
-            'lastcourseaccess' => get_string('never'),
+            'userid'              => $user->id,
+            'courseid'            => $this->get_course()->id,
+            'picture'             => new user_picture($user),
+            'userfullnamedisplay' => fullname($user, has_capability('moodle/site:viewfullnames', $this->get_context())),
+            'lastaccess'          => get_string('never'),
+            'lastcourseaccess'    => get_string('never'),
         );
+
         foreach ($extrafields as $field) {
             $details[$field] = $user->{$field};
         }

enrol/otherusers.php

@@ -50,6 +50,7 @@
 
 $userdetails = array (
     'picture' => false,
+    'userfullnamedisplay' => false,
     'firstname' => get_string('firstname'),
     'lastname' => get_string('lastname'),
 );

enrol/users.php

@@ -180,7 +180,7 @@
 
 
 $renderer = $PAGE->get_renderer('core_enrol');
-$userdetails = array('picture' => false);
+$userdetails = array('picture' => false, 'userfullnamedisplay' => false);
 // Get all the user names in a reasonable default order.
 $allusernames = get_all_user_name_fields(false, null, null, null, true);
 // Initialise the variable for the user's names in the table header.