Improve message

Author: owen-mc

go/Makefile

@@ -34,7 +34,7 @@ autoformat:
 check-formatting:
 	@output=$$(find . -path '**/vendor' -prune -or -type f -iname '*.go' ! -empty -print0 | xargs -0 grep -L "//\s*autoformat-ignore" | xargs gofmt -l 2>&1); \
 	if [ -n "$$output" ]; then \
-		echo "The following files need to be reformatted using gofmt:"; \
+		echo "The following files need to be reformatted using gofmt or have compilation errors:"; \
 		echo "$$output"; \
 	fi; \
 	test -z "$$output"