hist() with option "sub" (PR#2492)

"MM" == Martin Maechler <maechler@stat.math.ethz.ch>
    on Sat, 25 Jan 2003 17:01:31 +0100 writes:

.....

    MM> However, `sub' would really be a natural argument -- less for hist() than
    MM> for plot.histogram(), the plotting method called  by hist() when
    MM> it's plot argument is TRUE.  
    MM> Adding it there and pass it explictly to axis() solves this problem.

Oops, "thinko":  I meant  `title()', not `axis()'.

Martin