/usr/ is in libgles2-mesa-lts-raring 9.1.4-0ubuntu0.1~precise2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/mesa-egl/
/usr/lib/x86_64-linux-gnu/mesa-egl/libGLESv2.so.2.0.0
/usr/share/
/usr/share/lintian/
/usr/share/lintian/overrides/
/usr/share/lintian/overrides/libgles2-mesa-lts-raring
/usr/share/bug/
/usr/share/bug/libgles2-mesa-lts-raring/
/usr/share/bug/libgles2-mesa-lts-raring/control
/usr/share/bug/libgles2-mesa-lts-raring/script
/usr/share/doc/
/usr/share/doc/libgles2-mesa-lts-raring/
/usr/share/doc/libgles2-mesa-lts-raring/copyright
/usr/lib/x86_64-linux-gnu/mesa-egl/libGLESv2.so.2
/usr/share/doc/libgles2-mesa-lts-raring/changelog.Debian.gz