Correct a potential* comment length sanity check overflow.
Correct a potential* comment length sanity check overflow.

*as defined by the Derf Convention.


git-svn-id: 03f0f1727258f1959b7b485b30a676bafdb78148@16217 0101bb08-14d6-0310-b084-bc0e0c8e3800

KTXSoftware/vorbis,ShiftMediaProject/vorbis,jdm/vorbis,jdm/vorbis,libninjam/libvorbis,Distrotech/libvorbis,wighawag/vorbis,TitaniumEagle/libvorbis,libninjam/libvorbis,wighawag/vorbis,ShiftMediaProject/vorbis,Distrotech/libvorbis,jdm/vorbis,TitaniumEagle/libvorbis,brion/vorbis,Rillke/vorbis,brion/vorbis,KTXSoftware/vorbis,wighawag/vorbis,OffByOneStudios/vorbis,Rillke/vorbis,ShiftMediaProject/vorbis,ShiftMediaProject/vorbis,ShiftMediaProject/vorbis,wighawag/vorbis,libninjam/libvorbis,OffByOneStudios/vorbis,pcwalton/vorbis,KTXSoftware/vorbis,OffByOneStudios/vorbis,pcwalton/vorbis,Rillke/vorbis,brion/vorbis,jdm/vorbis,pcwalton/vorbis,TitaniumEagle/libvorbis,KTXSoftware/vorbis,brion/vorbis,pcwalton/vorbis,jdm/vorbis,Distrotech/libvorbis,OffByOneStudios/vorbis,Distrotech/libvorbis,Rillke/vorbis,libninjam/libvorbis,TitaniumEagle/libvorbis,ShiftMediaProject/vorbis,pcwalton/vorbis