Log deletions from mnaifest (via GC)

src/leveled_log.erl

@@ -127,7 +127,10 @@
         {warn, "Snapshot with pid ~w timed out and so deletion will "
                     ++ "continue regardless"}},
     {"P0035",
-        {info, "Startup with Manifest SQN of ~w~n"}},
+        {info, "Startup with Manifest SQN of ~w"}},
+    {"P0036",
+        {info, "Garbage collection on mnaifest removes key for filename ~s"}},
+        
     {"PC001",
         {info, "Penciller's clerk ~w started with owner ~w"}},
     {"PC002",

src/leveled_manifest.erl

@@ -480,6 +480,7 @@ key_lookup(Manifest, Level, {LastKey, LastFN}, KeyToFind, ManSQN, GC) ->
                         {true, GC_SQN} ->
                             case TombSQN < GC_SQN of
                                 true ->
+                                    leveled_log:log("P0036", [element(3, K)]),
                                     ets:delete(Manifest, K);
                                 false ->
                                     ok