Fix make.bat
Fix make.bat

Signed-off-by: Ben Moss <80bec717c12290923c80384e0a5fc28cdf75a97e@pivotal.io>

cloudfoundry/garden-windows,cloudfoundry/garden-windows,cloudfoundry/garden-windows,cloudfoundry-incubator/garden-windows,cloudfoundry-incubator/garden-windows,cloudfoundry-incubator/garden-windows