Remove $FreeBSD$: two-line nroff pattern

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

Fix a few mandoc issues

- no blank before trailing delimiter
- whitespace at end of input line
- sections out of conventional order
- normalizing date format
- AUTHORS section without An macro

Regularize the Netflix copyright

Use recent best practices for Copyright form at the top of
the license:
1. Remove all the All Rights Reserved clauses on our stuff. Where we
piggybacked others, use a separate line to make things clear.
2. Use "Netflix, Inc." everywhere.
3. Use a single line for the copyright for grep friendliness.
4. Use date ranges in all places for our stuff.

Approved by: Netflix Legal (who gave me the form), adrian@ (pmc files)

Don't end up manpage titles with a full stop.

MFC after: 2 weeks

pmcstudy.8: minor "efficiency" fix.

No functional change.

Fix several typos and bugs within pmcstudy. Also highlight the one SB test
that is failing (and is likely a problem in the actual PMC defintions). Add
to this also the -A option to run all canned tests.

Sponsored by: Netflix Inc.

Update the manual page to include Broadwell.

Rough first mdoc, spelling and grammar cleanup pass.

Opps its section 8 not 1 silly.
MFC after: 3 days
Sponsored by: Netflix

Update the manual page to be a bit more sane. It still
may need some work, but at least now it will read properly.
(gnn you are still on the hook to help out with this
like you committed).

Sponsored by: Netflix.