merge revision(s) 39201,39202:

	* win32/Makefile.sub (config.status): site and vendor directories
	  should use sitearch, not arch.  [ruby-dev:46964] [Bug #7823]

	* configure.in (rubysitearchprefix): sitearchdir and vendorarchdir
	  should use sitearch, not arch.  [ruby-dev:46964] [Bug #7823]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@39311 b2dd03c8-39d4-4d8f-98ff-823fe69b080e