fix bug where sync error at end-of-stream was not being caught (SF#1244071 https://sourceforge.net/tracker/index.php?func=detail&aid=1244071&group_id=13478&atid=113478); add warning about not being able to check md5 if md5 sum in STREAMINFO is zero
fix bug where sync error at end-of-stream was not being caught (SF#1244071 https://sourceforge.net/tracker/index.php?func=detail&aid=1244071&group_id=13478&atid=113478); add warning about not being able to check md5 if md5 sum in STREAMINFO is zero

toofishes/flac,toofishes/flac,toofishes/flac,toofishes/flac