Author: Frederic Massart
MDL-48496 block_rss_client: Do not display curl error messages
http://git.moodle.org/gw?p=moodle.git;a=commit;h=79fc19f5d77d3e1f990171ce72319b5fd6cc3aeb
http://github.com/moodle/moodle/commit/79fc19f5d77d3e1f990171ce72319b5fd6cc3aeb
+ 2.8 en [couldnotfindloadrssfeed,block_rss_client]