Windows Vista supports __declspec(thread) in dynamic loaded dll, so
Change the following comment in ChangeLog
    to avoid SEGV if win32ole.so loaded with LoadLibrary in Windows Vista
 -> to avoid SEGV if win32ole.so loaded with LoadLibrary in Windows XP


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38950 b2dd03c8-39d4-4d8f-98ff-823fe69b080e