anchor.diff:  		for _, bat in ipairs(vcvars_bats[vars.UNAME_M]) do
   			local full_path = vcdir .. bat
   			if exists(full_path) then
  -				return ('call "%s"'):format(full_path)
  +				return ('call "%s" > NUL'):format(full_path)
   			end
   		end
   
  
positive.code: 	if wsdkdir then
  		local setenv = wsdkdir.."Bin\\SetEnv.cmd"
  		if exists(setenv) then
  			return ('call "%s" /%s'):format(setenv, x64 and "x64" or "x86")
  		end
  	end
  
  
negative.code: 		local vcvarsall = vcdir .. 'vcvarsall.bat'
  		if exists(vcvarsall) then
  			local vcvarsall_args = { x86 = "", x86_64 = " amd64", arm64 = " x86_arm64" }
  			return ('call "%s"%s > NUL'):format(vcvarsall, vcvarsall_args[vars.UNAME_M])
  		end
  	end
  
  