xbiff(1x) on Linux
The text 610d0686d790, as Debian 3.1 (Sarge) shipped it. The page shows this text now.
mailbox flag for X
Flags it lists
-
-bd -
-bg -
-bw -
-display -
-fg -
-file -
-geometry -
-help -
-rv -
-shape -
-update -
-volume -
-xrm