Reports page default local task not always right

Issue Summary

I bumped into a problem when going to /admin/reports/memcache . If the "default" bin isn't the first key in $conf['memcache_servers'], then this page will give the wrong information. This is because the page assumes that the first key in the servers array is always the default, which it may not be. Although I could just link to /admin/reports/memcache/[server] to get to what should be displayed for the array's first server, I can't find a direct link to do so (the first local task always goes to /admin/reports/memcache).