[bug-mailutils] Binary name

[D. E. Evans]

Most GNU+Linux systems install a {M,m}ail{x} program by
default.  The default mailutils name is mail, but I'm not
seeing an option to change this in the Makefile.  On my
system Mail would be sufficient, but I think a recommended
option be available, perhaps GMail (or something else to
avoid the Google connection).

Have I overlooked a configure option, or make variable?