* Applied ajax's cleanup patch

code/renderer/tr_mesh.c

@@ -287,10 +287,10 @@ R_AddMD3Surfaces
 */
 void R_AddMD3Surfaces( trRefEntity_t *ent ) {
 	int				i;
-	md3Header_t		*header = 0;
-	md3Surface_t	*surface = 0;
-	md3Shader_t		*md3Shader = 0;
-	shader_t		*shader = 0;
+	md3Header_t		*header = NULL;
+	md3Surface_t	*surface = NULL;
+	md3Shader_t		*md3Shader = NULL;
+	shader_t		*shader = NULL;
 	int				cull;
 	int				lod;
 	int				fogNum;