colorbar, again

[Francesco Potorti`]

In Octave 3.0.1, I try:

  pcolor(peaks()); colorbar

the resulting plot is nice and good, but the colorbar on the right is
too big: its height should be the same as the right axis'.
Well, to be true, it is the plot that is too small: why ever all that
wasted space all around?

This sounds like a bug, but I am not sure.

Is there any workaround?  Specifically, I would like to enlarge the plot
without enlarging the colorbar, but I have no idea how: setting the
'outerposition' property enlarges everything, while setting 'position'
does nothing.

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