* 'dmesg/tests' of https://github.com/t-8ch/util-linux:
dmesg: use symbolic defines for second conversions
dmesg: add support for reserved and local facilities
dmesg: (tests) validate json output
dmesg: only write one message to json
jsonwrt: add ul_jsonwrt_value_s_sized
dmesg: open-code LOG_MAKEPRI
dmesg: correctly print all supported facility names
dmesg: error out instead of silently ignoring force_prefix