Fix various warnings

code/renderergl1/tr_shade.c

@@ -58,7 +58,7 @@ static int		c_vertexes;		// for seeing how long our average strips are
 static int		c_begins;
 static void R_DrawStripElements( int numIndexes, const glIndex_t *indexes, void ( APIENTRY *element )(GLint) ) {
 	int i;
-	int last[3] = { -1, -1, -1 };
+	glIndex_t last[3];
 	qboolean even;
 
 	c_begins++;