newsyslog(8) on OpenBSD
The text 593e3b578cf2, as OpenBSD 4.6, OpenBSD 4.5, OpenBSD 4.4, OpenBSD 4.3, OpenBSD 4.2 shipped it.
trim log files to manageable sizes
Flags it lists
-
-F -
-a -
-f -
-m -
-n -
-r -
-v