Remove trailing white spaces on all lines.

Author: garydgregory

src/main/java/org/apache/commons/csv/CSVPrinter.java

@@ -87,7 +87,7 @@ public void close() throws IOException {
     /**
      * Closes the underlying stream with an optional flush first.
      * @param flush whether to flush before the actual close.
-     * 
+     *
      * @throws IOException
      *             If an I/O error occurs
      * @since 1.6