include/image: don't save gzip name/timestamp metadata

Signed-off-by: bryan newbold <[email protected]>

SVN-Revision: 48587

include/image.mk

@@ -249,10 +249,9 @@ define Image/mkfs/cpiogz
 endef
 
 define Image/mkfs/targz
-	$(TAR) -czpf $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE_SANITIZED),-$(PROFILE_SANITIZED))-rootfs.tar.gz \
-		--numeric-owner --owner=0 --group=0 --sort=name \
+	$(TAR) -cp --numeric-owner --owner=0 --group=0 --sort=name \
 		$(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
-		-C $(TARGET_DIR)/ .
+		-C $(TARGET_DIR)/ . | gzip -9n > $(BIN_DIR)/$(IMG_PREFIX)$(if $(PROFILE_SANITIZED),-$(PROFILE_SANITIZED))-rootfs.tar.gz
 endef
 
 E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_PARTSIZE)*1024*1024)))