Tests/RunCMake/CommandLine/trace-json-v1.cmake - third_party/github.com/Kitware/CMake - Git at Google

 message(STATUS "JSON-V1 str" "spaces")
 set(ASDF fff sss "  SPACES !!!  ")
 set(FOO 42)
 set(BAR " space in string!")
 message(STATUS fff ${ASDF} " ${FOO} ${BAR}" "  SPACES !!!  ")
	message(STATUS "JSON-V1 str" "spaces")
	set(ASDF fff sss " SPACES !!! ")
	set(FOO 42)
	set(BAR " space in string!")
	message(STATUS fff ${ASDF} " ${FOO} ${BAR}" " SPACES !!! ")