[bug-mailutils] mail takes 23 times longer than nail

[Dan Jacobson]

Gentlemen, mail takes 23 times longer than nail:
$ time echo help|nail address@hidden

real    0m0.031s
user    0m0.010s
sys     0m0.010s
$ time echo help|mail address@hidden

real    0m0.739s
user    0m0.060s
sys     0m0.000s

OK, but on a second run of mail, it was down to
real    0m0.056s
So maybe there's something big being cached.
Further runs of nail get down to
real    0m0.020s