Remove "Unknown user" notification on password request with non-existent email address (#6254).

Patch by Go MAEDA.


git-svn-id: https://svn.redmine.org/redmine/trunk@22100 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/functional/account_controller_test.rb

@@ -476,6 +476,7 @@ class AccountControllerTest < Redmine::ControllerTest
         }
       )
       assert_response :success
+      assert_equal I18n.t(:notice_account_lost_email_sent), flash[:notice]
     end
   end