Tue, 02 Aug 2011 18:13:34 +0200Allow lgf file without Arc maps (#382)
Alpar Juttner <alpar@cs.elte.hu> [Tue, 02 Aug 2011 18:13:34 +0200] rev 1067
Allow lgf file without Arc maps (#382)

A single '-' character in the @arcs sectio header indicates that
there is no arc map.