Mysterious warnings in Scan

As far as I can tell, if you want to know the cause of a warning returned by scan, the only way is to look through the source code.

Example:
When you use the scan package to test a server's TLS handshake and the server allows for SSLv3, you get a warning, but there's no message to tell you why there was a warning. If you look in cipherSuiteScan(), in scan/tls_handshake.go, you can see the source of the warning.