Fixed multi-line comment warning in g++.

glm/detail/setup.hpp

@@ -633,7 +633,7 @@
 #endif
 
 // 
-#define GLM_HAS_TRIVIAL_QUERIES 0//( \
+#define GLM_HAS_TRIVIAL_QUERIES 0//(
 	//((GLM_COMPILER & GLM_COMPILER_VC) && (GLM_COMPILER >= GLM_COMPILER_VC2013)))
 
 //