tree 2281617cafa2ec0e9def7bf0ee5da3280e724c77
parent 1c462d47a0bc92f9f57af223456df53169acf3fe
author Gray Wolf <wolf@wolfsden.cz> 1588168157 +0200
committer Denys Vlasenko <vda.linux@googlemail.com> 1588168902 +0200

grep: Fix -f FILE when FILE is empty and -x provided

Grep currently special-cased empty pattern file to be the same as
pattern file with one empty line (empty pattern). That does mirror how
GNU grep behaves, except when -x is provided. In that case .* pattern
needs to be used instead.

Signed-off-by: Gray Wolf <wolf@wolfsden.cz>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>