Historically, newsyslog compressed rotated log files to save disk space. This was
useful in the early days. However, with modern file systems like ZFS offering native
compression, and with the availability of larger hard drives, the benefits of
additional compression have become less significant. This is particularly true
considering the inconvenience of decompressing log files when searching for
specific patterns.
To reinstate the historical behavior, modify the newsyslog entry in /etc/crontab
to include "-c legacy".
MFC: never