TZUTC: -0800
MSGID: 59168.sync_sys@1:103/705 2dc8f13f
PID: Synchronet 3.21b-Linux master/177a369d2 Jan 04 2026 GCC 12.2.0
TID: SBBSecho 3.34-Linux master/5090be897 Jan 08 2026 GCC 12.2.0
BBSID: VERT
CHRS: UTF-8 4
FORMAT: flowed
https://gitlab.synchro.net/main/sbbs/-/issues/1045#note_8121

As far as wasting resources is concerned, it was much worse when it left every
file open... it could use a MRU cache or something, but that would make the
happy path slower.

The actual cost is fairly low, `fclose()`, `strcpy()`, `fopen()`,
`lprintf(LOG_INFO, ...)`. the `lprintf()` is likely the most costly operation
there.  I wouldn't object to it being moved to LOG_DEBUG though.
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