Fix up the whitespace.

Remove an extra blank line and fix another whitespace error pointed out
by git diff

lib/jekyll/site.rb

@@ -100,8 +100,7 @@ module Jekyll
       end
     end
 
-    # Internal: Setup the plugin search path 
-    # 
+    # Internal: Setup the plugin search path
     #
     # Returns an Array of plugin search paths
     def plugins_path

test/test_site.rb

@@ -11,7 +11,7 @@ class TestSite < Test::Unit::TestCase
       site = Site.new(Jekyll::DEFAULTS.merge({'source' => source_dir}))
       assert_equal [File.join(source_dir, '_plugins')], site.plugins
     end
-    
+
     should "have an array for plugins if passed as a string" do
       site = Site.new(Jekyll::DEFAULTS.merge({'plugins' => '/tmp/plugins'}))
       assert_equal ['/tmp/plugins'], site.plugins