The last entry in layman-global.txt can not be parsed because it is missing a description tag after the url tag. (rostov) add description tag so #layman -L works.
xxxinetd: please don't try to assign bugs yourself like this. gpackages is totally unrelated to the layman file and overlays. Follow the bug-wrangling guidelines and recent discussion on the -dev ML if you want to do assignments. jokey: your commit was the broken one I think.
Added a description to the overlay though can't reproduce the error, which layman do you use?