CLSA-2026-1779191237 postfix: Fix of CVE-2026-43964

CVE-2026-43964: fix buffer over-read in dsnsplit when an enhanced status code is not followed by other text...

CLSA-2026-1779095130 postfix: Fix of CVE-2026-43964

CVE-2026-43964: fix buffer over-read in dsnsplit when an enhanced status code is not followed by other text...