Log Message:
Updated mail/exim to 4.98.2 - exploitable UAF

Exim version 4.98.2
-------------------

This is a security release, addressing CVE-2025-30232

JH/01 Fix use-after-free notified by Trend Micro (ref: ZDI-CAN-26250).
      Null out debug_pretrigger_buf pointer before freeing the buffer;
      the use of this buffer by the storage management checks the pointer
      for non-null before using it.