flipdiff(1) on Linux
The text 4ae4344b0bcb, as Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
exchange the order of two incremental patches
Flags it lists
-
--help -
--in-place -
--version -
-B -
-U -
-b -
-d -
-i -
-p -
-w -
-z