MFC r322410:

MFC r322410:
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  r322410 | ken | 2017-08-11 12:43:52 -0600 (Fri, 11 Aug 2017) | 16 lines

  Add historical notes on QIC tape drives and fix a couple of issues in mt(1).

   o Density code 0x5 is also known as QIC-11, and should have a footnote
     reference.
   o Add notes on QIC tape drives from the bug report.  These may help anyone
     trying to use a QIC drive.
   o Take out a "more more" instance found by igor.
   o Bump the man page date.

  The PR is 14 years old, so it's past time to retire it.

  PR:		doc/53596
  Submitted by:	tedm@toybox.placo.com
  Reviewed by:	bcr
  Sponsored by:	Spectra Logic

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Approved by:	re (gjb)

git-svn-id: svn://svn.freebsd.org/base/stable/10@322790 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f