Fixup test_load_error_raised_implicitly with JRuby

Author: hsbt

test/test_rake_rake_test_loader.rb

@@ -53,11 +53,8 @@ def test_load_error_raised_implicitly
       exc = assert_raises(LoadError) do
         load @loader
       end
-      if RUBY_ENGINE == "jruby" && JRUBY_VERSION < "10.0.3"
-        assert_equal "no such file to load -- superkalifragilisticoespialidoso", exc.message
-      else
-        assert_equal "cannot load such file -- superkalifragilisticoespialidoso", exc.message
-      end
+
+      assert_match /.* -- superkalifragilisticoespialidoso/, exc.message
     end
     assert_empty out
     assert_empty err