Makefile.sub: va_copy in old version
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62223 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Makefile.sub: va_copy in old version
simple copy same as VC1 19.00.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62223 b2dd03c8-39d4-4d8f-98ff-823fe69b080e