Undefined typo

Interetsingly setting  max_pencillercachesize to a non-integer merely had the impact of making the penciller cache size infinite.

So a guard added to make sure it is an integer going forward.

src/leveled_bookie.erl

@@ -100,7 +100,7 @@
                 {waste_retention_period, undefined},
                 {max_run_length, undefined},
                 {reload_strategy, []},
-                {max_pencillercachesize, undefiend},
+                {max_pencillercachesize, undefined},
                 {compression_method, ?COMPRESSION_METHOD},
                 {compression_point, ?COMPRESSION_POINT}]).
 

src/leveled_penciller.erl

@@ -971,7 +971,7 @@ start_from_file(PCLopts) ->
         case PCLopts#penciller_options.max_inmemory_tablesize of
             undefined ->
                 ?MAX_TABLESIZE;
-            M ->
+            M when is_integer(M) ->
                 M
         end,
     PressMethod = PCLopts#penciller_options.compression_method,