Fix invalid free crash in bookmarks loading code reported by Gids on IRC. Small test case is: (I'm not sure that it really needs to be that long)
#EXTVLCOPT:bookmarks={name=Rainforest Shmainforest,bytes=5276429,time=1},{name=Spontaneous Combustion,bytes=113071718,time=1331},{name=The Succubus,bytes=218546569,time=2663},{name=Jakovasaurs,bytes=326602991,time=3999},{name=Tweek Vs. Craig,bytes=436968699,time=5326},{name=Sexual Harassment Panda,bytes=542655194,time=6658}
episodes-1-6.m4v