Kill trailing whitespace in ruby files

app/logical/moderator/dashboard/queries/upload.rb

@@ -3,23 +3,23 @@ module Moderator
     module Queries
       class Upload
         attr_reader :user, :count
-        
+
         def self.all(min_date, max_level)
           sql = <<-EOS
-            select uploader_id, count(*) 
-            from posts 
-            join users on uploader_id = users.id 
-            where 
-              posts.created_at > ?  
-              and level <= ? 
-            group by posts.uploader_id 
-            order by count(*) desc 
+            select uploader_id, count(*)
+            from posts
+            join users on uploader_id = users.id
+            where
+              posts.created_at > ?
+              and level <= ?
+            group by posts.uploader_id
+            order by count(*) desc
             limit 10
           EOS
-          
+
           ActiveRecord::Base.select_all_sql(sql, min_date, max_level).map {|x| new(x)}
         end
-        
+
         def initialize(hash)
           @user = ::User.find(hash["uploader_id"])
           @count = hash["count"]