__recycledcloud_wordpress: fix altdomains call

type/__recycledcloud_wordpress/manifest

@@ -14,10 +14,7 @@ nginx_domain="$(cat "${__object:?}/parameter/domain")"
 
 altdomains=
 if [ -f "${__object:?}/parameter/altdomains" ]; then
-	while read -r altdomain;
-	do
-		altdomains="--altdomain $altdomain $altdomains"
-	done < "${__object:?}/parameter/altdomains"
+	altdomains=$(cat "${__object:?}/parameter/altdomains")
 fi
 
 max_upload_size=100M
@@ -66,7 +63,7 @@ require="__user/$user" __cron "$instance-db-export-cleanup" \
 # NGINX vhost for wordpress hosting.
 # shellcheck disable=SC2086
 __nginx "$nginx_domain" \
-	$altdomains \
+	--altdomains "$altdomains" \
 	--config - <<- EOF
 		root "$homedir";
 		index index.php;