msgs(1) on FreeBSD
The text 2da1afb5b317, as FreeBSD 2.2.6-RELEASE, FreeBSD 2.2.5-RELEASE shipped it.
system messages and junk mail program
Flags it lists
-
- -
-f -
-h -
-l -
-m -
-n -
-number -
-p -
-q -
-s -
-y