fixed test of --usage flags

git-svn-id: svn+ssh://rubyforge.org/var/svn/rake/trunk@608 5af023f1-ac1a-0410-98d6-829a145c37ef

test/test_application.rb

@@ -272,9 +272,11 @@ def test_dry_run
   end
 
   def test_help
-    flags('--help', '-H') do |opts|
+    flags('--help', '-H', '-h') do |opts|
       assert_match(/\Arake/, @out)
-      assert_match(/--help/, @out)
+      assert_match(/\boptions\b/, @out)
+      assert_match(/\btargets\b/, @out)
+      assert_equal :exit, @exit
       assert_equal :exit, @exit
     end
   end
@@ -287,15 +289,6 @@ def test_describe
     end
   end
 
-  def test_usage
-    flags('--usage', '-h') do |opts|
-      assert_match(/\Arake/, @out)
-      assert_match(/\boptions\b/, @out)
-      assert_match(/\btargets\b/, @out)
-      assert_equal :exit, @exit
-    end
-  end
-
   def test_libdir
     flags(['--libdir', 'xx'], ['-I', 'xx'], ['-Ixx']) do |opts|
       $:.include?('xx')