penlogd(1) on Linux
The text 3d51a5120e0a, as Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny) shipped it.
consolidate web server logs
Flags it lists
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-d -
-f -
-j -
-l -
-n -
-p -
-u