dialyzer fix

Author: kjnilsson

src/rabbit_core_metrics.erl

@@ -101,9 +101,9 @@
 %% API
 %%----------------------------------------------------------------------------
 init() ->
-    [ets:new(Table, [Type, public, named_table, {write_concurrency, true},
-                     {read_concurrency, true}])
-     || {Table, Type} <- ?CORE_TABLES ++ ?CORE_EXTRA_TABLES ++ [{quorum_mapping, set}]],
+    _ = [ets:new(Table, [Type, public, named_table, {write_concurrency, true},
+                         {read_concurrency, true}])
+         || {Table, Type} <- ?CORE_TABLES ++ ?CORE_EXTRA_TABLES ++ [{quorum_mapping, set}]],
     ok.
 
 terminate() ->