Make extraPrivate opt-in instead of opt-out. Fixes #1708

test/transform/resource/before/DataConfiguration.java

@@ -1,6 +1,7 @@
 //CONF: lombok.anyConstructor.suppressConstructorProperties = true
 //CONF: lombok.toString.doNotUseGetters = true
 //CONF: lombok.equalsAndHashCode.doNotUseGetters = true
+//CONF: lombok.noArgsConstructor.extraPrivate = true
 @lombok.Data
 class DataConfiguration {
 	final int x;