K 10
svn:author
V 6
kevans
K 8
svn:date
V 27
2018-10-03T17:21:45.974565Z
K 7
svn:log
V 246
MFC r338040: diff(1): Refactor -B a little bit

Instead of doing a second pass to skip empty lines if we've specified -I, go
ahead and check both at once. Ignore critera has been split out into its own
function to try and keep the logic cleaner.

END