Kill trailing whitespace in ruby files

app/models/post_appeal.rb

@@ -1,6 +1,6 @@
 class PostAppeal < ActiveRecord::Base
   class Error < Exception ; end
-  
+
   belongs_to :creator, :class_name => "User"
   belongs_to :post
   validates_presence_of :reason, :creator_id, :creator_ip_addr
@@ -8,38 +8,38 @@ class PostAppeal < ActiveRecord::Base
   validate :validate_creator_is_not_limited
   before_validation :initialize_creator, :on => :create
   validates_uniqueness_of :creator_id, :scope => :post_id, :message => "have already appealed this post"
-  
+
   module SearchMethods
     def for_user(user_id)
       where("creator_id = ?", user_id)
     end
-    
+
     def recent
       where("created_at >= ?", 1.day.ago)
     end
-    
+
     def search(params)
       q = scoped
       return q if params.blank?
-      
+
       if params[:creator_id].present?
         q = q.for_user(params[:creator_id].to_i)
       end
-      
+
       if params[:creator_name].present?
         q = q.where("creator_id = (select _.id from users _ where lower(_.name) = ?)", params[:creator_name].downcase)
       end
-      
+
       if params[:post_id].present?
         q = q.where("post_id = ?", params[:post_id].to_i)
       end
-      
+
       q
     end
   end
-  
+
   extend SearchMethods
-  
+
   def validate_creator_is_not_limited
     if appeal_count_for_creator >= Danbooru.config.max_appeals_per_day
       errors[:creator] << "can appeal at most #{Danbooru.config.max_appeals_per_day} post a day"
@@ -48,7 +48,7 @@ class PostAppeal < ActiveRecord::Base
       true
     end
   end
-  
+
   def validate_post_is_inactive
     if !post.is_deleted? && !post.is_flagged?
       errors[:post] << "is active"
@@ -57,12 +57,12 @@ class PostAppeal < ActiveRecord::Base
       true
     end
   end
-  
+
   def initialize_creator
     self.creator_id = CurrentUser.id
     self.creator_ip_addr = CurrentUser.ip_addr
   end
-  
+
   def appeal_count_for_creator
     PostAppeal.for_user(creator_id).recent.count
   end