Fix parsing comments right below slide delimiter
Fix parsing comments right below slide delimiter

https://bugzilla.gnome.org/show_bug.cgi?id=672337

GNOME/pinpoint,michaelgwood/pinpoint,tyll/pinpoint,michaelgwood/pinpoint,bpeel/pinpoint,robclark/pinpoint,tyll/pinpoint,bpeel/pinpoint,robclark/pinpoint,GNOME/pinpoint,robclark/pinpoint