Language: Update language term to use existing term - refs #6460

Author: ywarnier

src/CoreBundle/Controller/AccountController.php

@@ -204,7 +204,7 @@ public function changePassword(
                             ));
                         } elseif ($newPassword !== $confirmPassword) {
                             $form->get('confirmPassword')->addError(new FormError(
-                                $this->translator->trans('Passwords do not match.')
+                                $this->translator->trans('Passwords do not match')
                             ));
                         } else {
                             $user->setPlainPassword($newPassword);