update sign parser to handle both the broken and fixed swedish output

looks like[1] my patch[2] to the swedish sign output was eventually
applied.

[1] https://groups.google.com/d/msg/eclim-user/UtZPdhVfe90/G-DSv32bKOMJ
[2] https://groups.google.com/d/msg/vim_dev/02Q0SqzvD9I/-NkXN__CIDoJ