Merge pull request #10797 from poettering/run-generator

add new "systemd-run-generator" for running arbitrary commands from the kernel command line as system services using the "systemd.run=" kernel command line switch

diff --cc meson.build
Simple merge

diff --cc src/core/load-fragment.c
Simple merge

diff --cc src/core/manager.c
Simple merge

diff --cc src/core/service.c
Simple merge

diff --cc src/core/unit.c
Simple merge

diff --cc src/shared/bus-unit-util.c
Simple merge