Open-Xchange: Missing (or redundant) null check in `dcrypt_openssl_sign`

Function dcryptopensslsign in file src/lib-dcrypt/dcrypt-openssl.c has the following code if EVPPKEYbaseidkey-key == EVPPKEYRSA errorr = "Format does not support RSA"; return FALSE; and later if md == NULL if errorr != NULL errorr = tstrdupprintf "Unknown digest %s", algorithm; return FALSE; So,...