Improve padded cell's deprecation message.

Author: nedtwigg

plugin-gradle/CHANGES.md

@@ -3,6 +3,8 @@
 We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (starting after version `3.27.0`).
 
 ## [Unreleased]
+### Fixed
+* Improved the warning message for `paddedCell` deprecation, along with many API-invisible fixes and cleanup. ([#592](https://github.com/diffplug/spotless/pull/592/files))
 
 ## [4.2.0] - 2020-06-03
 ### Added

plugin-gradle/src/main/java/com/diffplug/gradle/spotless/SpotlessTask.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 DiffPlug
+ * Copyright 2016-2020 DiffPlug
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -104,7 +104,7 @@ public boolean isPaddedCell() {
 
 	@Deprecated
 	public void setPaddedCell(boolean paddedCell) {
-		getLogger().warn("PaddedCell is now always on, and cannot be turned off.");
+		getLogger().warn("Spotless warning: Padded Cell is now always on, and cannot be turned off.  Find `paddedCell(` and remove all invocations.");
 	}
 
 	protected String filePatterns = "";