To Hide "Log Message" or "Revision information" from node form in drupal

To Hide "Log Message" manually , use the below code in template.php

function phptemplate_node_form($form) {
  // Remove 'Log message' text area 
  $form['log']['#access'] = FALSE;
  return drupal_render($form);
}

OR 

use the below module


http://drupal.org/project/removelogmessage

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