minor cleanup

Author: cowtowncoder

src/main/java/com/fasterxml/jackson/databind/ser/impl/JsonSerializerMap.java

@@ -7,6 +7,10 @@
 
 /**
  * Specialized read-only map used for storing and accessing serializers by type.
+ * Used for per-{@link com.fasterxml.jackson.databind.ObjectMapper} sharing
+ * of resolved serializers; in addition, a per-call non-shared read/write
+ * map may be needed, which will (after call) get merged to create a new
+ * shared map of this type.
  */
 public class JsonSerializerMap
 {

src/test/java/com/fasterxml/jackson/databind/jsontype/TestPolymorphicWithDefaultImpl.java

@@ -90,10 +90,10 @@ public static class Bad {
     public static class GoodItem {}
 
     public static class GoodSub1 extends GoodItem {
-        public String a ;
+        public String a;
     }
     public static class GoodSub2 extends GoodItem {
-        public String b ;
+        public String b;
 
     }