config settings: MDL-16658 small rewording

config-dist.php

@@ -180,19 +180,20 @@ $CFG->admin = 'admin';
 // shared out from your site/institution!
 //      $CFG->includeuserpasswordsinbackup = true;
 //
-// Completely disable user creation on restore, bypassing any right granted
-// via roles/capabilities. By enabling this setting any restore process
-// requiring users to be created will be stopped before any further action.
+// Completely disable user creation when restoring a course, bypassing any
+// permissions granted via roles and capabilities. Enabling this setting
+// results in the restore process stopping when a user attempts to restore a
+// course requiring users to be created.
 //     $CFG->disableusercreationonrestore = true;
 //
 // Modify the restore process in order to force the "user checks" to assume
-// that the backup was originated in a different site so detection of matching
-// users is performed with some different (more "relaxed") rules. *Only* useful
-// if the backup file has been generated with Moodle < 1.9.4 and the site has
-// been rebuilt from scratch using backup files (not the best way, btw). If you
-// are getting user conflicts on restore, try to restore the backup to a different
-// site, backup it again and then restore on target server instead of enabling this
-// setting permanently!
+// that the backup originated from a different site, so detection of matching
+// users is performed with different (more "relaxed") rules. Note that this is
+// only useful if the backup file has been created using Moodle < 1.9.4 and the
+// site has been rebuilt from scratch using backup files (not the best way btw).
+// If you obtain user conflicts on restore, rather than enabling this setting
+// permanently, try restoring the backup on a different site, back it up again
+// and then restore on the target server.
 //    $CFG->forcedifferentsitecheckingusersonrestore = true;
 //
 // Prevent stats processing and hide the GUI