[PATCH] tools: add PKG_VERSION to patch-image

[Paul Spooren]

Based on no modifications for 5 years I'm assuming it's safe to call it
a version 1.0.0, reflect that in the Makefile.

Motivation is the tracking of changes in the buildsystem, which requires
versioning of packages.

Also update copyright.

Signed-off-by: Paul Spooren <mail at aparcar.org>
---
 tools/patch-image/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/patch-image/Makefile b/tools/patch-image/Makefile
index 6f2900b96c..7accd59597 100644
--- a/tools/patch-image/Makefile
+++ b/tools/patch-image/Makefile
@@ -1,5 +1,5 @@
 # 
-# Copyright (C) 2007-2012 OpenWrt.org
+# Copyright (C) 2007-2020 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
@@ -7,6 +7,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=patch-image
+PKG_VERSION:=1.0.0
 
 include $(INCLUDE_DIR)/host-build.mk
 
-- 
2.25.1