I fix order of actual and expect test value in standarderror.rb.

test/t/standarderror.rb

@@ -2,9 +2,9 @@
 # StandardError ISO Test
 
 assert('StandardError', '15.2.23') do
-  assert_equal StandardError.class, Class
+  assert_equal Class, StandardError.class
 end
 
 assert('StandardError superclass', '15.2.23.2') do
-  assert_equal StandardError.superclass, Exception
+  assert_equal Exception, StandardError.superclass
 end