[Drupal 7] Add a machinename column to the modules listing

drupal-core-system-add-machinename-column.patch

diff --git a/modules/system/system.admin.inc b/modules/system/system.admin.inc
index 7ed232a..9a71679 100644
--- a/modules/system/system.admin.inc
+++ b/modules/system/system.admin.inc
@@ -797,6 +797,8 @@ function system_modules($form, $form_state = array()) {
   foreach ($visible_files as $filename => $module) {
     $extra = array();
     $extra['enabled'] = (bool) $module->status;
+    $extra['machinename'] = $module->name;
+
     if (!empty($module->info['required'] )) {
       $extra['disabled'] = TRUE;
       $extra['required_by'][] = $distribution_name . (!empty($module->info['explanation']) ? ' ('. $module->info['explanation'] .')' : '');
@@ -896,6 +898,7 @@ function system_modules($form, $form_state = array()) {
       '#header' => array(
         array('data' => t('Enabled'), 'class' => array('checkbox')),
         t('Name'),
+        t('Machine name'),
         t('Version'),
         t('Description'),
         array('data' => t('Operations'), 'colspan' => 3),
@@ -957,6 +960,9 @@ function _system_modules_build_row($info, $extra) {
   $form['name'] = array(
     '#markup' => $info['name'],
   );
+  $form['machinename'] = array(
+    '#markup' => $extra['machinename'],
+  );
   $form['description'] = array(
     '#markup' => t($info['description']),
   );
@@ -2589,6 +2595,7 @@ function theme_system_modules_fieldset($variables) {
       $label .= ' for="' . $module['enable']['#id'] . '"';
     }
     $row[] = $label . '><strong>' . drupal_render($module['name']) . '</strong></label>';
+    $row[] = drupal_render($module['machinename']);
     $row[] = drupal_render($module['version']);
     // Add the description, along with any modules it requires.
     $description = drupal_render($module['description']);