K 10
svn:author
V 6
kevans
K 8
svn:date
V 27
2018-08-15T19:46:13.646506Z
K 7
svn:log
V 361
dd: Incorporate some changes from imp for status=progress

Notable changes from what landed in r337505:
- sigalarm handler isn't setup unless we're actually using it
- Humanized versions of the amount of data transferred in the progress
  update

Submitted by:	imp
Reviewed by:	kevans
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D16642

END