igc/parser: Raise ValueErrors if unexpected characters are read
igc/parser: Raise ValueErrors if unexpected characters are read

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