Fix tests target in makefile

makefile

@@ -263,8 +263,8 @@ test:
 
 .PHONY: tests
 tests:
-	./sparse2img.out img/in.simg img/out.img 2> $(ANALYZE_PATH)/valgrind_sparse2img
-	./img2sparse.out img/in.img img/out.simg 1024 2> $(ANALYZE_PATH)/valgrind_img2sparse
+	./sparse2img.out img/in.simg img/out.img
+	./img2sparse.out img/in.img img/out.simg 1024
 	md5sum -c md5_sum_file
 
 %.info: %.o