buildbot (10.5-10.8) SSL/TLS issues

[Helmut K. C. Tessarek]

I've received a few errors from older buildbot machines and it seems
that there's an issue with SSL/TLS:

DEBUG: Fetching distfile failed: error:1407742E:SSL
routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version
Error: Failed to fetch tmux-devel: error:1407742E:SSL
routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version
DEBUG: Error code: NONE
DEBUG: Backtrace: error:1407742E:SSL
routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version
    while executing
"error $lastError"
    (procedure "portfetch::fetchfiles" line 62)
    invoked from within
"portfetch::fetchfiles"
    (procedure "portfetch::fetch_main" line 17)
    invoked from within
"$procedure $targetname"

Any idea how to fix that?

Cheers,
  K. C.

-- 
regards Helmut K. C. Tessarek              KeyID 0x172380A011EF4944
Key fingerprint = 8A55 70C1 BD85 D34E ADBC 386C 1723 80A0 11EF 4944

/*
   Thou shalt not follow the NULL pointer for chaos and madness
   await thee at its end.
*/

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