git: Sync unvis(1) and vis(1) with NetBSD.

[Sascha Wildner]

commit d4060a6d907eb9e851a5883a2a08fd149707a764
Author: Sascha Wildner <saw at online.de>
Date:   Wed Apr 11 10:37:56 2018 +0200

    Sync unvis(1) and vis(1) with NetBSD.

Summary of changes:
 usr.bin/unvis/Makefile |   2 +-
 usr.bin/unvis/unvis.1  |  36 +++++++--
 usr.bin/unvis/unvis.c  |  60 +++++++++-----
 usr.bin/vis/Makefile   |   1 +
 usr.bin/vis/extern.h   |   2 +-
 usr.bin/vis/foldit.c   |   8 +-
 usr.bin/vis/vis.1      |  93 +++++++++++++++++----
 usr.bin/vis/vis.c      | 215 +++++++++++++++++++++++++++++++++++--------------
 8 files changed, 309 insertions(+), 108 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/d4060a6d907eb9e851a5883a2a08fd149707a764


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