Everybody loves a good yearly or so update

scripts/make/checksum.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+if [ -f "$SCRIPT_DIR"/local/checksum.sh ]; then
+    "$SCRIPT_DIR"/local/checksum.sh "$1" "$2" "$3"
+else
+    "$SCRIPT_DIR"/default/checksum.sh "$1" "$2"
+fi