debugreiserfs(8) on Linux
The text 5d4c77feab5d, as Debian 9 (Stretch) shipped it.
The debugging tool for the ReiserFS filesystem.
Flags it lists
-
-1 -
-B -
-D -
-J -
-S -
-d -
-j -
-m -
-o -
-p -
-q -
-u