Fix several compilation warnings.

Change-Id: I6525eab19ebe5a90e8f0fbfbef3d3e2ba2170da9
Reviewed-on: https://swiftshader-review.googlesource.com/2944
Reviewed-by: Greg Hartman <ghartman@google.com>
Tested-by: Greg Hartman <ghartman@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

src/OpenGL/libGLES_CM/libGLES_CM.hpp

diff --git a/src/OpenGL/libGLES_CM/libGLES_CM.hpp b/src/OpenGL/libGLES_CM/libGLES_CM.hpp
index 300140d..77e8eec 100644
--- a/src/OpenGL/libGLES_CM/libGLES_CM.hpp
+++ b/src/OpenGL/libGLES_CM/libGLES_CM.hpp
@@ -92,4 +92,4 @@
 	LibGLES_CMexports *libGLES_CMexports;
 };
 
-#endif libGLES_CM_hpp
+#endif   // libGLES_CM_hpp