Cleanup javadoc warnings in worldedit-bukkit

worldedit-bukkit/src/main/java/com/sk89q/worldedit/bukkit/adapter/BukkitImplAdapter.java

@@ -98,7 +98,7 @@ public interface BukkitImplAdapter {
     Entity createEntity(Location location, BaseEntity state);
 
     /**
-     * Get a map of string -> properties
+     * Get a map of {@code string -> property}.
      *
      * @param blockType The block type
      * @return The properties map