update makefile to test

Author: njtran

Makefile

@@ -113,6 +113,7 @@ verify: tidy download ## Verify code. Includes dependencies, linting, formatting
 	@git diff --quiet ||\
 		{ echo "New file modification detected in the Git working tree. Please check in before commit."; git --no-pager diff --name-only | uniq | awk '{print "  - " $$0}'; \
 		if [ "${CI}" = true ]; then\
+			git diff
 			exit 1;\
 		fi;}
 	@echo "Validating codegen/docgen build scripts..."