db5.1_load(1) on Linux
The text b297d499de18, as Debian 8 (Jessie), Debian 7 (Wheezy) shipped it. The page shows this text now.
Load data from standard input
Flags it lists
-
-P -
-T -
-V -
-c -
-f -
-h -
-n -
-r -
-t