usr.bin: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

Remove $FreeBSD$: one-line nroff pattern

Remove /^\.\\"\s*\$FreeBSD\$$\n/

morse.6: Mention to standards in the SEE ALSO section

Mention ITU-T Recommendation F.1 and ITU-R M.1677-1
in the SEE ALSO section.

Obtained from: OpenBSD
MFC after: 5 days

morse(6): update documentation

- bump Dd
- use 'r' instead of 'D' from the original submission

morse(6): implement support for decoding morse code

- Use `-r` for "reverse" mode and to match DragonFlyBSD.
- Move defines around to clear up logic
- use `errx` instead of `fprintf` and `exit`

PR: 35109
Submitted By: philipp.mergenthaler@stud.uni-karlsruhe.de
Submitted on: 2002-02-19
Reviewed by: kevans

morse(6): fix two typod

Final step of eliminating the "games" distribution: Merge src/games
(or what's left of it, at least) into src/usr.bin.

This change will not be MFCed.

Discussed at: EuroBSDCon 2014
Committed from: EuroBSDCon 2015