master
crypto/err: expand on error code generation
QUIC err handling: Save and restore error state
ossl_err_get_state_int(): Avoid saving the last sys error if not needed
crypto/err/err_all.c: load SM2 error strings
4.0-POST-CLANG-FORMAT-WEBKIT
Add missing header guards in local crypto includes.
Copyright year updates
Rename SSL3 error codes to TLS equivalents
Reject duplicate fields in X509v3 config