Increase verbosity of logging of saslauth

[Claus Assmann]

On Fri, Sep 13, 2019, Jobst Schmalenbach wrote:
> On Thu, Sep 12, 2019 at 04:12:12AM -0700, Claus Assmann (ca+sasl at esmtp.org) wrote:

> > > I would like - at the very least - see the names [[...]]

> > Get the latest sendmail snapshot and compile with -D_FFR_AUTH_FAIL_LOG_USER

> Curious question: Why is this not a default setting in sendmail and could be turned on by a macro?

There aren't many people who want(ed) this feature, so why should
it be turned on for everyone? Moreover, it only works for some
AUTH methods, so it's not a complete solution.

What do you mean by "a macro"?  It's a compile time option, not a
run time option.  I don't see how a (cf/mc?) "macro" could be involved
here and what the purpose/benefit would be.