Merge pull request #12420 from mrc0mmand/coccinelle-tweaks

Coccinelle improvements

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

diff --cc src/libsystemd/sd-bus/bus-message.c
Simple merge

diff --cc src/login/logind-user.c
Simple merge

diff --cc src/udev/cdrom_id/cdrom_id.c
Simple merge