K 10
svn:author
V 6
emaste
K 8
svn:date
V 27
2017-04-17T14:59:55.185399Z
K 7
svn:log
V 352
bsdgrep: fix zero-length matches without the -o flag

r316477 broke zero-length matches when not using the -o flag, by
skipping over them entirely.

Add a regression test so that it doesn't break again in the future.

Submitted by:	Kyle Evans <kevans91 at ksu.edu>
Reviewed by:	cem emaste ngie
Differential Revision:	https://reviews.freebsd.org/D10333

END