Function rsasl::error::rsasl_errname_to_str

pub fn rsasl_errname_to_str(err: Gsasl_rc) -> Option<&'static str>

Convert an error type to the human readable name of that error. i.e. rsasl_errname_to_str(GSASL_OK) -> “GSASL_OK”. Returns None when an invalid Gsasl_rc is passed.