>>>>> In <m2skt53pyr.fsf@lifelogs.com> 
>>>>>	Ted Zlatanov <tzz@lifelogs.com> wrote:

> Lines of code are not the only measure of code cleanliness; in this
> specific case I found your logic hard to read while debugging an
> unrelated problem so I tried to clean it up.

You appear to be shortsighted.  epg-context-* and epg-context-set-* are
close to simple getter/setter functions of defstruct in CL (see the
definition of epg-context-*).  It looks even unnatural for me to use a
temporary variable just to refer a slot value.

Anyway, I'm going to commit the following change, which ensures
the PASSPHRASE-CALLBACK slot have a cons-cell, and reduces the call to
`epg-context-passphrase-callback' to 3 times.