release: echo assets (#2060)

help debug why the assets' sha256 files weren't upload to github.

Signed-off-by: Miek Gieben <miek@miek.nl>

Makefile.release

@@ -98,6 +98,7 @@ github-push:
 	@$(eval RELEASE:=$(shell curl -s -d '{"tag_name": "v$(VERSION)", "name": "v$(VERSION)"}' "https://api.github.com/repos/$(GITHUB)/$(NAME)/releases?access_token=${GITHUB_ACCESS_TOKEN}" | grep -m 1 '"id"' | tr -cd '[[:digit:]]'))
 	@echo ReleaseID: $(RELEASE)
 	@for asset in `ls -A release`; do \
+	    echo $$asset; \
 	    curl -o /dev/null -X POST \
 	      -H "Content-Type: application/gzip" \
 	      --data-binary "@release/$$asset" \