MDL-37683 cache: - Comments cleanup and remove ;;

cache/classes/helper.php

@@ -496,9 +496,9 @@ class cache_helper {
      */
     public static function update_definitions($coreonly = false) {
         global $CFG;
-        // Include locallib
+        // Include locallib.
         require_once($CFG->dirroot.'/cache/locallib.php');
-        // First update definitions
+        // First update definitions.
         cache_config_writer::update_definitions($coreonly);
         // Second reset anything we have already initialised to ensure we're all up to date.
         cache_factory::reset();
@@ -511,7 +511,7 @@ class cache_helper {
      */
     public static function update_site_identifier($siteidentifier) {
         global $CFG;
-        // Include locallib
+        // Include locallib.
         require_once($CFG->dirroot.'/cache/locallib.php');
         $factory = cache_factory::instance();
         $factory->updating_started();
@@ -544,4 +544,4 @@ class cache_helper {
         global $CFG;
         return (string)$CFG->version;
     }
-}
+}