^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ chronyd\[[[:digit:]]+\]: Frequency -[[:digit:].]+ +/- [[:digit:].]+ ppm read from /var/lib/chrony/chrony\.drift$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ chronyd\[[[:digit:]]+\]: Loaded seccomp filter$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ chronyd\[[[:digit:]]+\]: Selected source [[:xdigit:]:.]+( \([[:alnum:].:]+\))?$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ chronyd\[[[:digit:]]+\]: Frequency -[[:digit:].]+ +/- [[:digit:].]+ ppm read from /var/lib/chrony/chrony\.drift$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ chronyd\[[[:digit:]]+\]: Loaded seccomp filter$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ chronyd\[[[:digit:]]+\]: Selected source [[:xdigit:]:.]+( \([[:alnum:].:]+\))?$