/usr/share/doc/ is in libaudiofile-dev 0.3.6-4.
This file is owned by root:root, with mode 0o755.
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/usr/share/doc/libaudiofile-dev/
/usr/share/doc/libaudiofile-dev/afCloseFile.3.txt
/usr/share/doc/libaudiofile-dev/afGetFrameCount.3.txt
/usr/share/doc/libaudiofile-dev/afGetFrameSize.3.txt
/usr/share/doc/libaudiofile-dev/afInitAESChannelDataTo.3.txt
/usr/share/doc/libaudiofile-dev/afInitCompression.3.txt
/usr/share/doc/libaudiofile-dev/afInitFileFormat.3.txt
/usr/share/doc/libaudiofile-dev/afInitSampleFormat.3.txt
/usr/share/doc/libaudiofile-dev/afNewFileSetup.3.txt
/usr/share/doc/libaudiofile-dev/afOpenFile.3.txt
/usr/share/doc/libaudiofile-dev/afQuery.3.txt
/usr/share/doc/libaudiofile-dev/afReadFrames.3.txt
/usr/share/doc/libaudiofile-dev/afReadMisc.3.txt
/usr/share/doc/libaudiofile-dev/afSeekFrame.3.txt
/usr/share/doc/libaudiofile-dev/afSetErrorHandler.3.txt
/usr/share/doc/libaudiofile-dev/afSetVirtualSampleFormat.3.txt
/usr/share/doc/libaudiofile-dev/afWriteFrames.3.txt
/usr/share/doc/libaudiofile-dev/copyright
/usr/share/doc/libaudiofile-dev/ACKNOWLEDGEMENTS
/usr/share/doc/libaudiofile-dev/AUTHORS
/usr/share/doc/libaudiofile-dev/NEWS.gz
/usr/share/doc/libaudiofile-dev/NOTES
/usr/share/doc/libaudiofile-dev/README
/usr/share/doc/libaudiofile-dev/changelog.Debian.gz