diffutils: Fix gplv2 version to work with recent gettext

(From OE-Core rev: c3e086805649bbe782ac76670acf5858536d8801)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
grep: Fix gplv2 version to work with recent gettext

(From OE-Core rev: 2433846255767d5a22fb2c7b2b723f290ac12fbf)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Merge pull request #17 from mdurnev/mdurnev/diffutils

diffutils: Fix gplv2 version to work with recent gettext