- Patch #27535 by Ber: set 'preview status message' using drupal_set_message().

modules/node.module

@@ -1501,9 +1501,9 @@ function node_preview($node) {
 function theme_node_preview($node) {
   $output = '<div class="preview">';
   if ($node->teaser && $node->teaser != $node->body) {
+    drupal_set_message(t('The trimmed version of your post shows what your post looks like when promoted to the main page or when exported for syndication. You can insert the delimiter "&lt;!--break--&gt;" (without the quotes) to fine-tune where your post gets split.'));
     $output .= '<h3>'. t('Preview trimmed version') .'</h3>';
     $output .= node_view($node, 1, FALSE, 0);
-    $output .= '<p><em>'. t('The trimmed version of your post shows what your post looks like when promoted to the main page or when exported for syndication. You can insert the delimiter "&lt;!--break--&gt;" (without the quotes) to fine-tune where your post gets split.') .'</em></p>';
     $output .= '<h3>'. t('Preview full version') .'</h3>';
     $output .= node_view($node, 0, FALSE, 0);
   }

modules/node/node.module

@@ -1501,9 +1501,9 @@ function node_preview($node) {
 function theme_node_preview($node) {
   $output = '<div class="preview">';
   if ($node->teaser && $node->teaser != $node->body) {
+    drupal_set_message(t('The trimmed version of your post shows what your post looks like when promoted to the main page or when exported for syndication. You can insert the delimiter "&lt;!--break--&gt;" (without the quotes) to fine-tune where your post gets split.'));
     $output .= '<h3>'. t('Preview trimmed version') .'</h3>';
     $output .= node_view($node, 1, FALSE, 0);
-    $output .= '<p><em>'. t('The trimmed version of your post shows what your post looks like when promoted to the main page or when exported for syndication. You can insert the delimiter "&lt;!--break--&gt;" (without the quotes) to fine-tune where your post gets split.') .'</em></p>';
     $output .= '<h3>'. t('Preview full version') .'</h3>';
     $output .= node_view($node, 0, FALSE, 0);
   }