Examples: fix some style nits

Author: mathstuf

Examples/CMakeLists.txt

@@ -36,14 +36,14 @@ if (ANDROID)
 elseif (APPLE_IOS)
   #add_example(iOS)
 elseif (EMSCRIPTEN)
-  if (CMAKE_VERSION VERSION_GREATER_EQUAL 3.13)
+  if (CMAKE_VERSION VERSION_GREATER_EQUAL "3.13")
     add_example(Emscripten/Cxx/AsyncClipper)
     add_example(Emscripten/Cxx/Cone)
     add_example(Emscripten/Cxx/ConeFullScreen)
     add_example(Emscripten/Cxx/MultiCone)
     add_example(Emscripten/Cxx/WrappedAsyncClipper)
     add_example(Emscripten/Cxx/WrappedMace)
-  endif()
+  endif ()
 else ()
   add_example(AMR/Cxx)
   add_example(Annotation/Cxx/LabeledMesh)