diff -u includes/project_maintainers.inc includes/project_maintainers.inc
--- includes/project_maintainers.inc
+++ includes/project_maintainers.inc	17 Aug 2010 16:31:46 -0000
@@ -7,7 +7,33 @@
  */
 
 /**
- * Build the form for the 
+ * Build the form for the node/N/maintainers tab on project nodes.
+ *
+ * This form uses project_permission_load() which in turn invokes
+ * hook_project_permission_info() to gather information about all the
+ * per-project permissions defined by any enabled modules on the site. It
+ * loops over all the current maintainers of the project and provides a
+ * checkbox for each user/permission pair. As a special-case, the owner of the
+ * project is automatically granted all permissions, so the row for them
+ * includes all the checkboxes pre-selected and disabled.  Finally, there's an
+ * auto-complete username text box and a set of checkboxes to allow the user
+ * of this form to add a new maintainer and select their permissions.
+ *
+ * @param $form_state
+ *   The Form API state of the form (set by drupal_get_form()).
+ * @param $project
+ *   The fully-loaded node object for the project to build the maintainers
+ *   form for.
+ *
+ * @return
+ *   A form definition array for use by the Form API.
+ *
+ * @see theme_project_maintainers_form()
+ * @see project_maintainers_form_validate()
+ * @see project_maintainers_form_submit()
+ * @see project_permission_load()
+ * @see hook_project_permission_info()
+ * @see drupal_get_form()
  */
 function project_maintainers_form($form_state, $project) {
   // Load all the info about per-project permissions on this site.
@@ -77,6 +103,18 @@
   return $form;
 }
 
+/**
+ * Render the final markup for the project maintainers form.
+ *
+ * @param $form
+ *   The fully-built form array for the project maintainers form.
+ *
+ * @return
+ *   String containing the markup to output for the maintainers form.
+ *
+ * @see theme()
+ * @see project_maintainers_form()
+ */
 function theme_project_maintainers_form($form) {
   $output = '';
 
diff -u release/project_release.test release/project_release.test
--- release/project_release.test
+++ release/project_release.test	17 Aug 2010 16:21:04 -0000
@@ -70,11 +70,12 @@
     // Add errors to project_release_package_errors and check that they are shown
     $errors = new stdClass;
     $errors->nid = $release->nid;
-    $errors->messages = serialize(array($this->randomName(), $this->randomName(), $this->randomName()));
+    $error_messages = array($this->randomName(), $this->randomName(), $this->randomName());
+    $errors->messages = serialize($error_messages);
     $success = drupal_write_record('project_release_package_errors', $errors);
     $this->drupalGet("node/$release->nid");
     $this->assertText(t('Packaging error messages'), 'Packaging error messages shown correctly.');
-    foreach ($errors->message as $message) {
+    foreach ($error_messages as $message) {
       $this->assertText($message);
     }