Avoid repeated and quoted additional FTP username in email

Avoid repeated and quoted additional FTP username in when changing FTP pass or path.
Before this fix email contains:
Username: test_'test_anna'
Now it is corrected to:
Username: test_anna

Author: myvesta

web/edit/web/index.php

@@ -625,6 +625,7 @@
                 }
 
                 // Change FTP account path
+                $v_ftp_username_for_emailing = $v_ftp_user_data['v_ftp_user'];
                 $v_ftp_username = $user . '_' . $v_ftp_user_data['v_ftp_user']; //preg_replace("/^".$user."_/", "", $v_ftp_user_data['v_ftp_user']);
                 $v_ftp_username = escapeshellarg($v_ftp_username);
                     $v_ftp_path = escapeshellarg(trim($v_ftp_user_data['v_ftp_path']));
@@ -645,7 +646,7 @@
                     $subject = __("FTP login credentials");
                     $hostname = exec('hostname');
                     $from = __('MAIL_FROM',$hostname);
-                    $mailtext = __('FTP_ACCOUNT_READY',$_GET['domain'],$user,$v_ftp_username,$v_ftp_user_data['v_ftp_password']);
+                    $mailtext = __('FTP_ACCOUNT_READY',$_GET['domain'],$user,$v_ftp_username_for_emailing,$v_ftp_user_data['v_ftp_password']);
                     send_email($to, $subject, $mailtext, $from);
                     unset($v_ftp_email);
                 }