Kill trailing whitespace in ruby files

app/logical/sources/strategies/nico_seiga.rb

@@ -8,7 +8,7 @@ module Sources
       def site_name
         "Nico Seiga"
       end
-      
+
       def unique_id
         profile_url =~ /\/illust\/(\d+)/
         "nicoseiga" + $1
@@ -21,9 +21,9 @@ module Sources
           @tags = get_tags_from_page(page)
         end
       end
-      
+
     protected
-    
+
       def get_profile_from_page(page)
         links = page.search("div.illust_user_name a")
 
@@ -34,10 +34,10 @@ module Sources
           profile_url = nil
           artist_name = nil
         end
-        
+
         return [artist_name, profile_url].compact
       end
-      
+
       def get_image_url_from_page(page)
         links = page.search("a#illust_link")
 
@@ -47,7 +47,7 @@ module Sources
           nil
         end
       end
-      
+
       def get_tags_from_page(page)
         links = page.search("div#tag_block nobr a.tag")
 
@@ -55,7 +55,7 @@ module Sources
           [node.text, "http://seiga.nicovideo.jp" + node.attr("href")]
         end
       end
-    
+
       def agent
         @agent ||= begin
           mech = Mechanize.new