`cmake_dependent_option` fails if `CMAKE_PROJECT_NAME` has a space in it

[JesseTG]

When trying to include toml11 in melonDS DS via FetchContent, I get this error message:

CMake Error at C:/tools/msys64/ucrt64/share/cmake/Modules/CMakeDependentOption.cmake:83 (if):
  if given arguments:

    "'melonDS" "DS'" "STREQUAL" "toml11"

  Unknown arguments specified
Call Stack (most recent call first):
  cmake-build-debug-windows/_deps/toml11-src/CMakeLists.txt:27 (cmake_dependent_option)


-- Configuring incomplete, errors occurred!

The offending CMake call is right here:

toml11/CMakeLists.txt

Lines 27 to 28 in 2a18a89

	cmake_dependent_option(TOML11_INSTALL "install toml11 library" ON
	"${CMAKE_PROJECT_NAME} STREQUAL ${PROJECT_NAME}" OFF)

Of note is that my project's value of CMAKE_PROJECT_NAME is melonDS DS.