Fixed comment of create_plugin_enumerator.

src/libstrongswan/plugins/plugin_loader.h

@@ -59,9 +59,9 @@ struct plugin_loader_t {
 	/**
 	 * Create an enumerator over all loaded plugins.
 	 *
-	 * In addition to the plugin, a to read-only list is enumerated (if it is
-	 * not NULL). This list contains pointer to plugin features currently
-	 * loaded.
+	 * In addition to the plugin, the enumerator returns a list of pointers to
+	 * plugin features currently loaded (if the argument is not NULL).
+	 * This list is to be read only.
 	 *
 	 * @return				enumerator over plugin_t*, linked_list_t*
 	 */