Merge pull request #26887 from yuwata/proc-cmdline-filter-arguments

proc-cmdline: filter PID1 arguments on container

diff --cc src/ask-password/ask-password.c
Simple merge

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

diff --cc src/nspawn/nspawn.c
Simple merge

diff --cc src/udev/udevadm-lock.c
Simple merge