Fix test failure
The test was checking for an obsolete error.
@@ -5375,7 +5375,7 @@ run_test "PSK callback: no psk, no callback" \
"$P_CLI force_ciphersuite=TLS-PSK-WITH-AES-128-CBC-SHA \
psk_identity=foo psk=abc123" \
1 \
- -s "SSL - None of the common ciphersuites is usable" \
+ -s "SSL - The handshake negotiation failed" \
-S "SSL - Unknown identity received" \
-S "SSL - Verification of the message MAC failed"
