Security update for flac

This update for flac fixes the following issues:

- CVE-2017-6888: Fix memory leak in read_metadata_vorbiscomment_() function could lead to denial of service (boo#1091045).

Fixed bugs
bnc#1091045
VUL-1: CVE-2017-6888: flac: memory leak in read_metadata_vorbiscomment_() function
Selected Binaries
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