/usr/ is in clang-3.5-examples 1:3.5~svn201651-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/clang-3.5-examples/examples/
/usr/share/
/usr/share/doc/
/usr/share/doc/clang-3.5-examples/
/usr/share/doc/clang-3.5-examples/copyright
/usr/share/doc/clang-3.5-examples/examples/PrintFunctionNames/
/usr/share/doc/clang-3.5-examples/examples/PrintFunctionNames/CMakeLists.txt
/usr/share/doc/clang-3.5-examples/examples/PrintFunctionNames/PrintFunctionNames.cpp
/usr/share/doc/clang-3.5-examples/examples/PrintFunctionNames/Makefile
/usr/share/doc/clang-3.5-examples/examples/PrintFunctionNames/PrintFunctionNames.exports
/usr/share/doc/clang-3.5-examples/examples/PrintFunctionNames/README.txt
/usr/share/doc/clang-3.5-examples/examples/clang-interpreter/
/usr/share/doc/clang-3.5-examples/examples/clang-interpreter/CMakeLists.txt
/usr/share/doc/clang-3.5-examples/examples/clang-interpreter/Makefile
/usr/share/doc/clang-3.5-examples/examples/clang-interpreter/main.cpp.gz
/usr/share/doc/clang-3.5-examples/examples/clang-interpreter/README.txt
/usr/share/doc/clang-3.5-examples/examples/analyzer-plugin/
/usr/share/doc/clang-3.5-examples/examples/analyzer-plugin/CMakeLists.txt
/usr/share/doc/clang-3.5-examples/examples/analyzer-plugin/MainCallChecker.cpp
/usr/share/doc/clang-3.5-examples/examples/analyzer-plugin/Makefile
/usr/share/doc/clang-3.5-examples/changelog.Debian.gz