newsyslog(8) on macOS
The text 616f2d2ce672, as Mac OS X 10.5.8, Mac OS X 10.5.7, Mac OS X 10.5.6, Mac OS X 10.5.5, Mac OS X 10.5.4, Mac OS X 10.5.3, Mac OS X 10.5.2, Mac OS X 10.5.1, Mac OS X 10.5 shipped it.
maintain system log files to manageable sizes
Flags it lists
-
-C -
-F -
-N -
-R -
-a -
-d -
-f -
-n -
-r -
-s -
-v