Graphic accents and plot() command in octave 3.3.53

[José Luis García Pallero]

Hello,
I'm using Octave testing 3.3.53 and I have a minor problem with plot
command. If I try to set xlabel() or ylabel() text containing non
english characters (á, Á, etc.) I obtain this warning:

warning: ft_render: skipping missing glyph for character `�'
warning: ft_render: skipping missing glyph for character `�'

I'm working in Debian GNU/Linux unstable and my plot backend is
gnuplot 4.4 patchlevel 0.
In Octave 3.2.4 I can put non english characters without problems.
Is this issue a known behavior in 3.3.53?

Thanks

PD: Another minor issue. Now in 3.3.53 if I try help func and func do
not exists, the interpreter not emits any warning, only continues as
normal.

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José Luis García Pallero
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