[DVDnav-discuss] A few patches for minor defects

I put the libdvdnav code in MythTV through a static analysis tool and it found some defects. I ported the patches I submitted there to the fork on mplayerhq. I offer them here to you in hopes you find them useful. E -- Erik Hovland mail: erik@hovland.org web: http://hovland.org/ PGP/GPG public key available on request