Kill trailing whitespace in ruby files

app/controllers/maintenance/user/login_reminders_controller.rb

@@ -3,7 +3,7 @@ module Maintenance
     class LoginRemindersController < ApplicationController
       def new
       end
-      
+
       def create
         @user = ::User.with_email(params[:user][:email]).first
         if @user
@@ -12,7 +12,7 @@ module Maintenance
         else
           flash[:notice] = "Email address not found"
         end
-        
+
         redirect_to new_maintenance_user_login_reminder_path
       end
     end