Minor and tweaked refactoring from

#203 by Andrew Shcheglov
(ashcheglov on GitHub).

Author: Gary Gregory

src/main/java/org/apache/commons/io/file/PathUtils.java

@@ -226,9 +226,10 @@ public static PathCounters cleanDirectory(final Path directory, final DeleteOpti
      */
     public static PathCounters copyDirectory(final Path sourceDirectory, final Path targetDirectory,
         final CopyOption... copyOptions) throws IOException {
+        final Path absoluteSource = sourceDirectory.toAbsolutePath();
         return visitFileTree(
-            new CopyDirectoryVisitor(Counters.longPathCounters(), sourceDirectory, targetDirectory, copyOptions),
-            sourceDirectory).getPathCounters();
+            new CopyDirectoryVisitor(Counters.longPathCounters(), absoluteSource, targetDirectory, copyOptions),
+            absoluteSource).getPathCounters();
     }
 
     /**