tracker-extract,albumart: Plug a leak
tracker-extract,albumart: Plug a leak

The pixbuf loader was being leaked, whereas the pixbuf
was being unref'ed, even though it's owned by the loader.

outofbits/tracker,outofbits/tracker,outofbits/tracker,hoheinzollern/tracker,hoheinzollern/tracker,outofbits/tracker,hoheinzollern/tracker,hoheinzollern/tracker,outofbits/tracker,hoheinzollern/tracker,outofbits/tracker,hoheinzollern/tracker,hoheinzollern/tracker,outofbits/tracker