Add a URL for each detached signature file.
@( \
echo Subject: $(my_distdir) released; \
echo; \
+ echo '<#secure method=pgpmime mode=sign>'; \
echo FIXME: put comments here; \
echo; \
for url in $(url_dir_list); do \
echo " $$url/$(xd-delta) ($(xd-size))"; \
done; \
echo; \
+ echo "Here are GPG detached signatures:"; \
+ echo " $$url/$(my_distdir).tar.gz.sig"; \
+ echo " $$url/$(my_distdir).tar.bz2.sig"; \
+ echo; \
echo "Here are the MD5 and SHA1 signatures:"; \
echo; \
echo "$(tgz-md5) $(my_distdir).tar.gz"; \