forgot return in mp3

Author: CatKasha

filetype/types/audio.py

@@ -54,6 +54,8 @@ def match(self, buf):
                     buf[1] == 0xFA or #MPEG 1 with error protection
                     buf[1] == 0xFB):  #MPEG 1 w/o error protection
                     return True
+                else:
+                    return False
             else:
                 return False
         else: