validate(1) on Linux
The text 5da5ca26ae50, as Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it. The page shows this text now.
Offline HTMLHelp.com Validator
Flags it lists
-
--charset -
--help -
--verbose -
--version -
--w -
--warn -
--xml -
-h -
-v