Use Spotless version 6.19.0

build.gradle

@@ -7,7 +7,7 @@ plugins {
 
   // Code formatting; defines targets "spotlessApply" and "spotlessCheck"
   // Requires JDK 11 or higher; the plugin crashes under JDK 8.
-  id 'com.diffplug.spotless' version '6.18.0'
+  id 'com.diffplug.spotless' version '6.19.0'
 
   // Error Prone linter
   id('net.ltgt.errorprone') version '3.1.0'

src/main/java/org/plumelib/multiversioncontrol/MultiVersionControl.java

@@ -449,10 +449,13 @@ static enum Action {
   // Shorter variants
   /** Clone a repository. */
   private static Action CLONE = Action.CLONE;
+
   /** Show the working tree status. */
   private static Action STATUS = Action.STATUS;
+
   /** Pull changes from upstream. */
   private static Action PULL = Action.PULL;
+
   /** List the known repositories. */
   private static Action LIST = Action.LIST;
 
@@ -655,10 +658,13 @@ static enum RepoType {
   static class Checkout {
     /** The type of repository to clone. */
     RepoType repoType;
+
     /** Local directory. */
     File directory;
+
     /** Local directory (canonical version). */
     String canonicalDirectory;
+
     /**
      * Non-null for CVS and SVN. May be null for distributed version control systems (Bzr, Git, Hg).
      * For distributed systems, refers to the parent repository from which this was cloned, not the
@@ -667,6 +673,7 @@ static class Checkout {
      * <p>Most operations don't need this. It is needed for checkout, though.
      */
     @Nullable String repository;
+
     /**
      * Null if no module, just whole thing. Non-null for CVS and, optionally, for SVN. Null for
      * distributed version control systems (Bzr, Git, Hg).
@@ -1269,6 +1276,7 @@ static Checkout dirToCheckoutGit(File gitDir, File parentDir) {
   static class FilePair {
     /** The first file. */
     final @Nullable File file1;
+
     /** The second file. */
     final @Nullable File file2;
 
@@ -1355,6 +1363,7 @@ private void addArgs(ProcessBuilder pb, List<String> args) {
   private static class Replacer {
     /** The regular expression matching text that should be replaced. */
     Pattern regexp;
+
     /** The replacement text. */
     String replacement;