std.c: add correct SOMAXCONN for BSDs

Note the previous "28" here for openbsd was some kind of copy
error long ago.  That's the value of KERN.SOMAXCONN, which is an
entirely different thing.
ae2622bf82Brandon Black committed on 8/27/2025, 7:46:37 AM· committed by Alex Rønne Petersenparent9399fcd
1 file changedLine totals unavailable