Quick patch to fix FLAC_metadata_object api docs.
Quick patch to fix FLAC_metadata_object api docs.

Signed-off-by: Erik de Castro Lopo <1586a8e151fb6d548e7a343b9bcdfea42e83ffc0@mega-nerd.com>

waitman/flac,fredericgermain/flac,waitman/flac,fredericgermain/flac,Distrotech/flac,Distrotech/flac,LordJZ/libflac,fredericgermain/flac,kode54/flac,Distrotech/flac,LordJZ/libflac,kode54/flac,waitman/flac,waitman/flac,kode54/flac,waitman/flac,Distrotech/flac,LordJZ/libflac,LordJZ/libflac,fredericgermain/flac,kode54/flac