Give time_ago_in_words test some DST slop.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6374 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/test/template/date_helper_test.rb

@@ -93,8 +93,7 @@ def test_distance_in_words_with_dates
   end
 
   def test_time_ago_in_words
-    t = Time.now - 1.years
-    assert_equal "about 1 year", time_ago_in_words(t)
+    assert_equal "about 1 year", time_ago_in_words(1.year.ago - 1.day)
   end
 
   def test_select_day