===================================================================
+++ 20110302T233219Z
@@ 13830 @@
 
 IO#reopen with an IO
 - associates the IO instance with the other IO's stream
+- may change the class of the instance (ERROR - <n>)
 - sets path equals to the other IO's path if other IO is File
 
 /Users/chkbuild/chkbuild/tmp/build/ruby-1.8.6/<buildtime>/rubyspec/core/io/rewind_spec.rb