$ git clone -n https://src.fedoraproject.org/rpms/valgrind.git /var/lib/mock/f38-build-723585-99135/root/chroot_tmpdir/scmroot/valgrind
Cloning into '/var/lib/mock/f38-build-723585-99135/root/chroot_tmpdir/scmroot/valgrind'...
$ git reset --hard 6f8aeb0d15cc4a6f78ab0ec38b7728245be0102d
HEAD is now at 6f8aeb0 3.21.0-4 - Add valgrind-3.21.0-epoll_pwait2.patch