[PÄTCH] notmuch-emacs-mua: set EMACS{,CLIENT} variables to defaults when empty

[David Bremner]

Tomi Ollila <tomi.ollila at iki.fi> writes:

> ... in addition to doing this when these variables are unset.
>
> It is more useful to use defaults (emacs or emacsclient) than empty
> string as a command name.

Pushed,

d