Use a more portable way to add a carriage return

Looks like echo -e does not work properly with MacOs's sh

Author: greg0ire

Makefile

@@ -17,7 +17,7 @@ test-fix: vendor
 
 update-compatibility-patch:
 	@git apply tests/php-compatibility.patch
-	@echo -e "Please open your editor and apply your changes\n"
+	@printf "Please open your editor and apply your changes\n"
 	@until [ "$${compatibility_resolved}" == "y" ]; do read -p "Have finished your changes (y|n)? " compatibility_resolved; done && compatibility_resolved=
 	@git diff -- tests/expected_report.txt tests/fixed > .tmp-patch && mv .tmp-patch tests/php-compatibility.patch && git apply -R tests/php-compatibility.patch
 	@git commit -m 'Update compatibility patch' tests/php-compatibility.patch