code: public void symlinkTo(final String target, final TaskListener listener) throws IOException, InterruptedException {
          act(new SymlinkTo(target, listener));
      }
docs: Creates a symlink to the specified target.
  
  @param target
  The file that the symlink should point to.
  @param listener
  If symlink creation requires a help of an external process, the error will be reported here.
  @since 1.456