sdiff(1) on OpenBSD

The text 4a0c50d858f1, as OpenBSD 3.3, OpenBSD 3.2, OpenBSD 3.1, OpenBSD 3.0, OpenBSD 2.9, OpenBSD 2.8, OpenBSD 2.7, OpenBSD 2.6, OpenBSD 2.5, OpenBSD 2.4, OpenBSD 2.3, OpenBSD 2.2, OpenBSD 2.1 shipped it.

find differences between two files and merge interactively

Flags it lists

--expand-tabs
--ignore-all-space
--ignore-blank-lines
--ignore-case
--ignore-matching-lines
--ignore-space-change
--left-column
--minimal
--output
--speed-large-files
--suppress-common-lines
--text
--version
--width
-B
-H
-I
-W
-a
-b
-d
-i
-l
-o
-s
-t
-v
-w

sdiff(1) on OpenBSD now