[Gpsbabel-code] Synthesize shortnames in lmx

[Christian B. <chr...@cb...>]

Hello again,

as I already dug a little into the source, I think I can as well
contribute a litte more :-)

In Ovi Maps (formerly Nokia Maps), only the name of the landmark is
displayed. So I think it makes sense to take the description for it when
using the -s switch.

Regards,
Christian Bühler