Fix an extra %s in BlogFeedController

Summary: Fished this out of the secure.phabricator.com error log. Introduced in D4869.

Test Plan: Eyeballed it.

Reviewers: chad, vrana

Reviewed By: chad

CC: aran

Differential Revision: https://secure.phabricator.com/D5199

src/applications/phame/controller/blog/PhameBlogFeedController.php

@@ -70,7 +70,7 @@ final class PhameBlogFeedController extends PhameController {
         '/phame/post/view/'.$post->getID().'/'));
 
       $content[] = hsprintf(
-        '<author><name>%s</name>%s</author>',
+        '<author><name>%s</name></author>',
         $bloggers[$post->getBloggerPHID()]->getFullName());
 
       $content[] = phutil_tag(