Link clickthroughs were always being attributed to link_id #1 because of the %d format string.

I know this used to work (although it shouldn't have), but something must have stopped being lenient.


git-svn-id: https://plugins.svn.wordpress.org/wordpress-feed-statistics/trunk@960870 b8457f37-d9ea-0310-8a92-e5e31aec5664