sdiff(1) on OpenBSD
The text 8f1a66a94c10, as OpenBSD 4.8, OpenBSD 4.7, OpenBSD 4.6, OpenBSD 4.5, OpenBSD 4.4, OpenBSD 4.3, OpenBSD 4.2 shipped it.
side-by-side diff
Flags it lists
-
-I -
-W -
-a -
-b -
-d -
-i -
-l -
-o -
-s -
-t -
-w