Improved changelog entry

CHANGELOG.md

@@ -27,7 +27,7 @@ We advise to switch to an external PostgreSQL database server.
 - Bugfixes: Replace PUBLIC_HOSTNAME and PUBLIC_IP in "Received" headers to ensure that no undue spam points are attributed ([#191](https://github.com/Mailu/Mailu/issues/191))
 - Bugfixes: Don't replace nested headers (typically in attached emails) ([#1660](https://github.com/Mailu/Mailu/issues/1660))
 - Bugfixes: Fix letsencrypt access to certbot for the mail-letsencrypt flavour ([#1686](https://github.com/Mailu/Mailu/issues/1686))
-- Bugfixes: Fix CVE-2020-25275 and CVE-2020-24386 by using alpine 3.13 for
+- Bugfixes: Fix CVE-2020-25275 and CVE-2020-24386 by upgrading alpine for
   dovecot which contains a fixed dovecot version. ([#1720](https://github.com/Mailu/Mailu/issues/1720))
 - Bugfixes: Antispam service now uses a static hostname. Rspamd history is only retained when the service has a fixed hostname. ([#1837](https://github.com/Mailu/Mailu/issues/1837))
 - Bugfixes: Fix a bug preventing colons from being used in passwords when using radicale/webdav. ([#1861](https://github.com/Mailu/Mailu/issues/1861))