3.2.0 release candidate 4

[Alexander Mamonov]

With a MinGW build of 3.2.0-rc4 I observe a spurious console output from plot

> plot([0,1]);
str =

{
  [1,1] = OCTAVE: windows

}

This only happens for gnuplot backend.

>backend('fltk');
>plot([0,1]);

does not produce any spurious output to the console.

Regards,
Alex