New commits:
commit e1621e117d4e8a4cda1bfc7b818504434cc1ec82
Author: Pavel Vinogradov <public AT sourcemage.org>
Commit: Ismael Luceno <ismael AT sourcemage.org>
dl_curl: Make curl fail more explicitly
In case of a non-successful request, curl normally returns the error
document.
Add --fail to let us handle the error and fallback to the next mirror.
[ismael AT sourcemage.org: Improved commit message]