Fix Javadoc typo in RegistryConfig

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=141318009

java/google/registry/config/RegistryConfig.java

@@ -152,7 +152,7 @@ public interface RegistryConfig {
 
   /**
    * Returns the global automatic transfer length for contacts.  After this amount of time has
-   * elapsed, the transfer is automatically improved.
+   * elapsed, the transfer is automatically approved.
    */
   public Duration getContactAutomaticTransferLength();