Fix missing comma

includes/pages/guest_login.php

@@ -326,7 +326,7 @@ function guest_register()
                 ]),
                 div('col', [
                     form_text('lastname', __('Last name') . ' ' . entry_required(), $lastName, false, 64, 'family-name')
-                ])
+                ]),
                 $enable_pronoun ? div('col', [
                     form_text('pronoun', __('Pronoun'), $pronoun, false, 15)
                 ]) : '',