Print full diff in compile check

Author: redsun82

.github/workflows/script/check-js.sh

@@ -12,7 +12,8 @@ rm -rf lib
 # Generate the JavaScript files
 npm run-script build
 # Check that repo is still clean
-if [ ! -z "$(git status --porcelain)" ]; then
+git add -N .
+if ! git diff --exit-code; then
     # If we get a fail here then the PR needs attention
     >&2 echo "Failed: JavaScript files are not up to date. Run 'rm -rf lib && npm run-script build' to update"
     git status