This helper acts like /dev/zero (outputs \x00 indefinitely) in an
OS-independent fashion. This ensures we don't need to special-case
around Windows in tests that want to open /dev/zero.
Signed-off-by: Aleksa Sarai <asarai@suse.de>
Upstream-commit: 2f8d3e1c33f77187c68893803018756d43daff15
Component: engine