Panels exports include extra indentation where it doesn't match Drupal coding standards. For example:
$display->panels = array(); $pane = new stdClass(); $pane->pid = 'new-36405db8-54c5-495c-ba8a-0a5f7ade185a';
$display is prefixed with 2 spaces, but
$pane is prefixed with 4 spaces. There is no reason for the additional indentation!
This creates problems with using Features to export Panels pages (or Panelizer defaults or Mini-panels) and tools to automatically test coding standards - it generates lots of false positives.
I'll attach a patch to fix in a moment.