git: dd(1): Make signal handler async safe

[Aaron LI]

commit 493fd20cdd4bfd6684d359d2e3a50826e807a71f
Author: Aaron LI <aly at aaronly.me>
Date:   Thu Feb 14 21:06:26 2019 +0800

    dd(1): Make signal handler async safe
    
    Obtained-from: FreeBSD (revision 250469)

Summary of changes:
 bin/dd/dd.c       |  6 +++++-
 bin/dd/extern.h   | 32 +++++++++++++++++---------------
 bin/dd/misc.c     | 23 +++++++----------------
 bin/dd/position.c |  6 ++++--
 4 files changed, 33 insertions(+), 34 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/493fd20cdd4bfd6684d359d2e3a50826e807a71f


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