deindent calls

implement function in new class

src/Core/Update.php

@@ -4,6 +4,7 @@ namespace Friendica\Core;
 
 use Friendica\Database\DBA;
 use Friendica\Database\DBStructure;
+use Friendica\Util\Strings;
 
 class Update
 {
@@ -209,7 +210,7 @@ class Update
 			$lang = (($admin['language'])?$admin['language']:'en');
 			L10n::pushLang($lang);
 
-			$preamble = deindent(L10n::t("
+			$preamble = Strings::deindent(L10n::t("
 				The friendica developers released update %s recently,
 				but when I tried to install it, something went terribly wrong.
 				This needs to be fixed soon and I can't do it alone. Please contact a
@@ -244,7 +245,7 @@ class Update
 				$lang = (($admin['language']) ? $admin['language'] : 'en');
 				L10n::pushLang($lang);
 
-				$preamble = deindent(L10n::t("
+				$preamble = Strings::deindent(L10n::t("
 					The friendica database was successfully updated from %s to %s.",
 					$from_build, $to_build));
 

src/Model/User.php

@@ -693,7 +693,7 @@ class User
 	 */
 	public static function sendRegisterPendingEmail($user, $sitename, $siteurl, $password)
 	{
-		$body = deindent(L10n::t('
+		$body = Strings::deindent(L10n::t('
 			Dear %1$s,
 				Thank you for registering at %2$s. Your account is pending for approval by the administrator.
 
@@ -728,13 +728,13 @@ class User
 	 */
 	public static function sendRegisterOpenEmail($user, $sitename, $siteurl, $password)
 	{
-		$preamble = deindent(L10n::t('
+		$preamble = Strings::deindent(L10n::t('
 			Dear %1$s,
 				Thank you for registering at %2$s. Your account has been created.
 		',
 			$preamble, $user['username'], $sitename
 		));
-		$body = deindent(L10n::t('
+		$body = Strings::deindent(L10n::t('
 			The login details are as follows:
 
 			Site Location:	%3$s