Created attachment 338548 [details, diff] replace gawk by awk At this point gawk is in the system sets, but this will possibly change in the future. The following patches uses awk instead of gawk. There is no danger as '$2 == "" { print }' is posix conform program.
Thanks, this is in git: http://git.overlays.gentoo.org/gitweb/?p=proj/portage.git;a=commit;h=b9e0ee1bff068c7a161890294c259f6a04b4315a