cmake boost_regex examples

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

find_package(boost_regex REQUIRED)

jinja2cpp/Jinja2Cpp thirdparty/external_boost_deps.cmake :28 

find_package(boost_regex              ${FIND_BOOST_PACKAGE_QUIET})