/usr/share/gtk-doc/ is in libvips-doc 7.28.5-1+deb7u1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/gtk-doc/html/
/usr/share/gtk-doc/html/libvips/
/usr/share/gtk-doc/html/libvips/VipsForeignSave.html
/usr/share/gtk-doc/html/libvips/VipsImage.html
/usr/share/gtk-doc/html/libvips/VipsInterpolate.html
/usr/share/gtk-doc/html/libvips/VipsObject.html
/usr/share/gtk-doc/html/libvips/VipsOperation.html
/usr/share/gtk-doc/html/libvips/VipsRegion.html
/usr/share/gtk-doc/html/libvips/VipsThreadState.html
/usr/share/gtk-doc/html/libvips/annotation-glossary.html
/usr/share/gtk-doc/html/libvips/api-index-full.html
/usr/share/gtk-doc/html/libvips/ch01.html
/usr/share/gtk-doc/html/libvips/ch02.html
/usr/share/gtk-doc/html/libvips/ch03.html
/usr/share/gtk-doc/html/libvips/home.png
/usr/share/gtk-doc/html/libvips/index.html
/usr/share/gtk-doc/html/libvips/index.sgml
/usr/share/gtk-doc/html/libvips/interconvert.png
/usr/share/gtk-doc/html/libvips/left.png
/usr/share/gtk-doc/html/libvips/libvips-arithmetic.html
/usr/share/gtk-doc/html/libvips/libvips-buf.html
/usr/share/gtk-doc/html/libvips/libvips-colour.html
/usr/share/gtk-doc/html/libvips/libvips-conversion.html
/usr/share/gtk-doc/html/libvips/libvips-convolution.html
/usr/share/gtk-doc/html/libvips/libvips-error.html
/usr/share/gtk-doc/html/libvips/libvips-freq-filt.html
/usr/share/gtk-doc/html/libvips/libvips-generate.html
/usr/share/gtk-doc/html/libvips/libvips-header.html
/usr/share/gtk-doc/html/libvips/libvips-histograms-lut.html
/usr/share/gtk-doc/html/libvips/libvips-inplace.html
/usr/share/gtk-doc/html/libvips/libvips-mask.html
/usr/share/gtk-doc/html/libvips/libvips-memory.html
/usr/share/gtk-doc/html/libvips/libvips-morphology.html
/usr/share/gtk-doc/html/libvips/libvips-mosaicing.html
/usr/share/gtk-doc/html/libvips/libvips-other.html
/usr/share/gtk-doc/html/libvips/libvips-rect.html
/usr/share/gtk-doc/html/libvips/libvips-resample.html
/usr/share/gtk-doc/html/libvips/libvips-semaphore.html
/usr/share/gtk-doc/html/libvips/libvips-transform.html
/usr/share/gtk-doc/html/libvips/libvips-util.html
/usr/share/gtk-doc/html/libvips/libvips-version.html
/usr/share/gtk-doc/html/libvips/libvips-video.html
/usr/share/gtk-doc/html/libvips/libvips.devhelp2
/usr/share/gtk-doc/html/libvips/object-tree.html
/usr/share/gtk-doc/html/libvips/right.png
/usr/share/gtk-doc/html/libvips/style.css
/usr/share/gtk-doc/html/libvips/up.png