Fix issue with checksum line format on Debian Wheezy base images. Make sure it has two spaces since old sha256sum version only accepts that format
Fix issue with checksum line format on Debian Wheezy base images.
Make sure it has two spaces since old sha256sum version only accepts that format

resin-io-library/base-images,nghiant2710/base-images,resin-io-library/base-images,nghiant2710/base-images