/usr/share/GNUstep/Documentation/ is in gnustep-make-doc 2.6.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/GNUstep/Documentation/Developer/
/usr/share/GNUstep/Documentation/Developer/Make/
/usr/share/GNUstep/Documentation/Developer/Make/Manual/
/usr/share/GNUstep/Documentation/Developer/Make/Manual/DESIGN
/usr/share/GNUstep/Documentation/Developer/Make/Manual/Internals/
/usr/share/GNUstep/Documentation/Developer/Make/Manual/Internals/index.html
/usr/share/GNUstep/Documentation/Developer/Make/Manual/Internals/internals.css
/usr/share/GNUstep/Documentation/Developer/Make/Manual/Internals/internals.html
/usr/share/GNUstep/Documentation/Developer/Make/Manual/Internals/node1.html
/usr/share/GNUstep/Documentation/Developer/Make/Manual/Internals/node2.html
/usr/share/GNUstep/Documentation/Developer/Make/Manual/Internals/node3.html
/usr/share/GNUstep/Documentation/Developer/Make/Manual/Internals/node4.html
/usr/share/GNUstep/Documentation/Developer/Make/Manual/Internals/node5.html
/usr/share/GNUstep/Documentation/Developer/Make/Manual/Internals/node6.html
/usr/share/GNUstep/Documentation/Developer/Make/Manual/Internals/node7.html
/usr/share/GNUstep/Documentation/Developer/Make/Manual/Internals/node8.html
/usr/share/GNUstep/Documentation/Developer/Make/Manual/gnustep-make.html
/usr/share/GNUstep/Documentation/Developer/Make/Manual/gnustep-make.pdf
/usr/share/GNUstep/Documentation/Developer/Make/ReleaseNotes/
/usr/share/GNUstep/Documentation/Developer/Make/ReleaseNotes/2.6.1/
/usr/share/GNUstep/Documentation/Developer/Make/ReleaseNotes/2.6.1/ANNOUNCE
/usr/share/GNUstep/Documentation/Developer/Make/ReleaseNotes/2.6.1/INSTALL
/usr/share/GNUstep/Documentation/Developer/Make/ReleaseNotes/2.6.1/NEWS
/usr/share/GNUstep/Documentation/Developer/Make/ReleaseNotes/2.6.1/README
/usr/share/GNUstep/Documentation/Developer/Make/ReleaseNotes/RELEASENOTES
/usr/share/GNUstep/Documentation/User/
/usr/share/GNUstep/Documentation/User/GNUstep/
/usr/share/GNUstep/Documentation/User/GNUstep/README.Cygwin
/usr/share/GNUstep/Documentation/User/GNUstep/README.Darwin
/usr/share/GNUstep/Documentation/User/GNUstep/README.MinGW
/usr/share/GNUstep/Documentation/User/GNUstep/README.MinGWOnCygwin
/usr/share/GNUstep/Documentation/User/GNUstep/gnustep-faq.html
/usr/share/GNUstep/Documentation/User/GNUstep/gnustep-faq.pdf
/usr/share/GNUstep/Documentation/User/GNUstep/gnustep-filesystem.html
/usr/share/GNUstep/Documentation/User/GNUstep/gnustep-filesystem.pdf
/usr/share/GNUstep/Documentation/User/GNUstep/gnustep-howto.html
/usr/share/GNUstep/Documentation/User/GNUstep/gnustep-howto.pdf
/usr/share/GNUstep/Documentation/User/GNUstep/gnustep-userfaq.html
/usr/share/GNUstep/Documentation/User/GNUstep/gnustep-userfaq.pdf