test_keyword.rb: assert_raise_with_message value
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56921 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test_keyword.rb: assert_raise_with_message value
assert_raise_with_message returns the raised exception object.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56921 b2dd03c8-39d4-4d8f-98ff-823fe69b080e