Kill trailing whitespace in ruby files

app/presenters/post_presenter.rb

@@ -3,18 +3,18 @@ class PostPresenter < Presenter
     if post.is_deleted? && !CurrentUser.is_privileged?
       return ""
     end
-    
+
     unless Danbooru.config.can_user_see_post?(CurrentUser.user, post)
       return ""
     end
-    
+
     flags = []
     flags << "pending" if post.is_pending?
     flags << "flagged" if post.is_flagged?
     flags << "deleted" if post.is_deleted?
-    
+
     path = options[:path_prefix] || "/posts"
-    
+
     html =  %{<article class="post-preview" id="post_#{post.id}" data-id="#{post.id}" data-tags="#{h(post.tag_string)}" data-uploader="#{h(post.uploader_name)}" data-rating="#{post.rating}" data-width="#{post.image_width}" data-height="#{post.image_height}" data-flags="#{flags.join(' ')}" data-parent-id="#{post.parent_id}" data-has-children="#{post.has_children?}" data-score="#{post.score}">}
     if options[:tags].present?
       tag_param = "?tags=#{CGI::escape(options[:tags])}"
@@ -29,43 +29,43 @@ class PostPresenter < Presenter
     html << %{</article>}
     html.html_safe
   end
-  
+
   def initialize(post)
     @post = post
   end
-  
+
   def preview_html
     PostPresenter.preview(@post)
   end
-  
+
   def humanized_tag_string
     @post.tag_string.split(/ /).slice(0, 25).join(", ").tr("_", " ")
   end
-  
+
   def humanized_essential_tag_string
     string = []
-    
+
     if @post.character_tags.any?
       string << @post.character_tags.slice(0, 5).to_sentence
     end
-    
+
     if @post.copyright_tags.any?
       string << "from"
       string << @post.copyright_tags.slice(0, 5).to_sentence
     end
-    
+
     if @post.artist_tags.any?
       string << "drawn by"
       string << @post.artist_tags.to_sentence
     end
-    
+
     string.join(" ").tr("_", " ")
   end
-  
+
   def image_html(template)
     return template.content_tag("p", "This image was deleted.") if @post.is_deleted? && !CurrentUser.user.is_privileged?
     return template.content_tag("p", "You need a privileged account to see this image.") if !Danbooru.config.can_user_see_post?(CurrentUser.user, @post)
-    
+
     if @post.is_flash?
       template.render("posts/partials/show/flash", :post => @post)
     elsif !@post.is_image?
@@ -74,21 +74,21 @@ class PostPresenter < Presenter
       template.render("posts/partials/show/image", :post => @post)
     end
   end
-  
+
   def tag_list_html(template, options = {})
     @tag_set_presenter ||= TagSetPresenter.new(@post.tag_array)
     @tag_set_presenter.tag_list_html(template, options.merge(:show_extra_links => CurrentUser.user.is_privileged?))
   end
-  
+
   def split_tag_list_html(template, options = {})
     @tag_set_presenter ||= TagSetPresenter.new(@post.tag_array)
     @tag_set_presenter.split_tag_list_html(template, options.merge(:show_extra_links => CurrentUser.user.is_privileged?))
   end
-  
+
   def has_nav_links?(template)
     (CurrentUser.user.enable_sequential_post_navigation && template.params[:tags].present? && template.params[:tags] !~ /order:/) || @post.pools.active.any?
   end
-  
+
   def post_footer_for_pool_html(template)
     if template.params[:pool_id]
       pool = Pool.where(:id => template.params[:pool_id]).first
@@ -99,15 +99,15 @@ class PostPresenter < Presenter
       nil
     end
   end
-  
+
   def pool_html(template)
     html = ["<ul>"]
-    
+
     if template.params[:pool_id].present?
       pool = Pool.where(:id => template.params[:pool_id]).first
       return if pool.nil?
       html += pool_link_html(template, pool, :include_rel => true)
-      
+
       @post.pools.active.where("id <> ?", template.params[:pool_id]).each do |other_pool|
         html += pool_link_html(template, other_pool)
       end
@@ -122,15 +122,15 @@ class PostPresenter < Presenter
         end
       end
     end
-    
+
     html << "</ul>"
     html.join("\n").html_safe
   end
-  
+
   def pool_link_html(template, pool, options = {})
     pool_html = ["<li>"]
     match_found = false
-    
+
     if options[:include_rel]
       prev_rel = "prev"
       next_rel = "next"
@@ -140,14 +140,14 @@ class PostPresenter < Presenter
       next_rel = nil
       klass = ""
     end
-    
+
     if pool.neighbors(@post).previous
       pool_html << template.link_to("&laquo;prev".html_safe, template.post_path(pool.neighbors(@post).previous, :pool_id => pool.id), :rel => prev_rel, :class => "#{klass} prev")
       match_found = true
     else
       pool_html << '<span class="prev">&laquo;prev</span>'
     end
-    
+
     pool_html << ' <span class="pool-name ' + klass + '">'
     pool_html << template.link_to("Pool: #{pool.pretty_name}", template.pool_path(pool))
     pool_html << '</span> '
@@ -158,7 +158,7 @@ class PostPresenter < Presenter
     else
       pool_html << '<span class="next">next&raquo;</span>'
     end
-    
+
     pool_html << "</li>"
     pool_html
   end