Make piglit binary output reproducible
These changes ensure that what piglit installs is bit by bit reproducible from one build to the next, if the source code does not change.
See https://reproducible-builds.org/ for why this is desirable.
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
These changes ensure that what piglit installs is bit by bit reproducible from one build to the next, if the source code does not change.
See https://reproducible-builds.org/ for why this is desirable.