Replace some more usages of func

src/Lib/Db/Mem.php

@@ -6,6 +6,9 @@ use Redis;
 
 class Mem
 {
+	/**
+	 * @var Redis
+	 */
 	public static $cache;
 	public static $connected;
 	private static $func;

src/Modules/Mails/MailsControl.php

@@ -11,6 +11,9 @@ use Foodsharing\Modules\Console\ConsoleControl;
 
 class MailsControl extends ConsoleControl
 {
+	/**
+	 * @var fSMTP
+	 */
 	public static $smtp = false;
 	public static $last_connect;
 

src/Modules/Maintenance/MaintenanceControl.php

@@ -146,7 +146,7 @@ class MaintenanceControl extends ConsoleControl
 				$inactive_fsids[$fs['id']] = $fs['id'];
 				$this->tplMail(27, $fs['email'], array(
 					'name' => $fs['name'],
-					'anrede' => s('anrede_' . $fs['geschlecht'])
+					'anrede' => $this->func->s('anrede_' . $fs['geschlecht'])
 				));
 
 				$this->infoToBotsUserDeactivated($fs);
@@ -163,7 +163,7 @@ class MaintenanceControl extends ConsoleControl
 			foreach ($foodsaver as $fs) {
 				$this->tplMail(26, $fs['email'], array(
 					'name' => $fs['name'],
-					'anrede' => s('anrede_' . $fs['geschlecht'])
+					'anrede' => $this->func->s('anrede_' . $fs['geschlecht'])
 				));
 			}
 
@@ -428,7 +428,7 @@ class MaintenanceControl extends ConsoleControl
 			self::info('send ' . count($foodsaver) . ' warnings...');
 			foreach ($foodsaver as $fs) {
 				$this->tplMail(28, $fs['fs_email'], array(
-					'anrede' => s('anrede_' . $fs['geschlecht']),
+					'anrede' => $this->func->s('anrede_' . $fs['geschlecht']),
 					'name' => $fs['fs_name'],
 					'betrieb' => $fs['betrieb_name'],
 					'link' => URL_INTERN . '/?page=fsbetrieb&id=' . $fs['betrieb_id']