One CI run just got a server error fetching the spec from Fedora.
We have a spec here (which I don't like but we do) so use it
to lower CI flakes.
Signed-off-by: Colin Walters <walters@verbum.org>
This must be a regression from the timestamp change:
91ed63caf1
Without this we fail to parse the timestamp and get errors;
maybe something else changed.
Of course, we should use a non-Makefile language for
this so we get proper error checking. I may move some
of the makefile bits into xtask.rs or so.
Signed-off-by: Colin Walters <walters@verbum.org>
