cmake boost_optional examples

Jackarain/proxy third_party/boost/libs/optional/test/cmake_install_test/CMakeLists.txt :9 

find_package(boost_optional REQUIRED)

jinja2cpp/Jinja2Cpp thirdparty/external_boost_deps.cmake :26 

find_package(boost_optional           ${FIND_BOOST_PACKAGE_QUIET})