rawhide: cliwrap causes looping in `rpm-ostree.kernel-replace` test.

[dustymabe]

We enabled this in https://github.com/coreos/fedora-coreos-config/pull/2858 but there seems to be a bug.

ext.config.rpm-ostree.kernel-replace calls dracut somewhere down in the stack and that is now looping:

Feb 27 17:48:55.590402 kola-runext.service[1483]: Use `rpm-ostree initramfs` to control client-side initramfs generation.
Feb 27 17:48:55.590402 kola-runext.service[1483]: rpm-ostree: Note: This system is image (rpm-ostree) based.
Feb 27 17:48:55.590402 kola-runext.service[1483]: rpm-ostree: Wrapped binary "dracut" was executed with not "known safe" arguments.
Feb 27 17:48:55.590402 kola-runext.service[1483]: rpm-ostree: You may invoke the real `dracut` binary in `/usr/libexec/rpm-ostree/wrapped/dracut`.
Feb 27 17:48:55.590402 kola-runext.service[1483]: rpm-ostree: Continuing execution in 5 seconds.
Feb 27 17:49:00.608327 kola-runext.service[1483]: This system is rpm-ostree based; initramfs handling is
Feb 27 17:49:00.608327 kola-runext.service[1483]: integrated with the underlying ostree transaction mechanism.
Feb 27 17:49:00.608327 kola-runext.service[1483]: Use `rpm-ostree initramfs` to control client-side initramfs generation.
Feb 27 17:49:00.608818 kola-runext.service[1483]: rpm-ostree: Note: This system is image (rpm-ostree) based.
Feb 27 17:49:00.608818 kola-runext.service[1483]: rpm-ostree: Wrapped binary "dracut" was executed with not "known safe" arguments.
Feb 27 17:49:00.608818 kola-runext.service[1483]: rpm-ostree: You may invoke the real `dracut` binary in `/usr/libexec/rpm-ostree/wrapped/dracut`.
Feb 27 17:49:00.608818 kola-runext.service[1483]: rpm-ostree: Continuing execution in 5 seconds.
Feb 27 17:49:05.626169 kola-runext.service[1483]: This system is rpm-ostree based; initramfs handling is
Feb 27 17:49:05.626169 kola-runext.service[1483]: integrated with the underlying ostree transaction mechanism.
Feb 27 17:49:05.626169 kola-runext.service[1483]: Use `rpm-ostree initramfs` to control client-side initramfs generation.

[jlebon]

Reopening to track inclusion in FCOS proper.