Fix warn-user-repos for new :repositories format.

leiningen-core/src/leiningen/core/project.clj

@@ -217,7 +217,7 @@
 
 (defn- warn-user-repos []
   (when (->> (vals (user/profiles))
-             (map (comp vals :repositories))
+             (map (comp second :repositories))
              (apply concat) (some :url))
     (println "WARNING: :repositories detected in user-level profile!")
     (println "See https://github.com/technomancy/leiningen/wiki/Repeatability")))