lib.xcsoar_.flightpath: add missing shortener
lib.xcsoar_.flightpath: add missing shortener

Turbo87/skylines,snip/skylines,TobiasLohner/SkyLines,skylines-project/skylines,RBE-Avionik/skylines,kerel-fs/skylines,Turbo87/skylines,kerel-fs/skylines,skylines-project/skylines,shadowoneau/skylines,shadowoneau/skylines,skylines-project/skylines,snip/skylines,shadowoneau/skylines,RBE-Avionik/skylines,TobiasLohner/SkyLines,snip/skylines,skylines-project/skylines,Harry-R/skylines,Turbo87/skylines,Harry-R/skylines,Harry-R/skylines,RBE-Avionik/skylines,TobiasLohner/SkyLines,Turbo87/skylines,RBE-Avionik/skylines,shadowoneau/skylines,kerel-fs/skylines,Harry-R/skylines