[systemd-devel] Globally overriding stdout/stderr for all units for debugging?

[Andrey Borzenkov]

Setting systemd.log_target affects only output made by systemd itself;
units still continue to use whatever was defined in unit files. To
debug unit activation problems it would be helpful to redirect output;
but for auto-generated units (like mounts, swaps, etc) it is not even
possible as there is no unit file to edit.

Would global option, something like systemd.unit_{stdout,stderr}=kmsg,
make sense?