Usage of "{}" as default fontname for gnuplot

[Benjamin Lindner]

Hello,

currently, for the gnuplot graphics backend, the default font "*" is
translated into "{}" before passing to gnuplot.
This causes troubles with the windows terminal, and I wondered if "{}"
is a valid gnuplot fontname specification.
I glanced through gnuplot's manual, but there is no mentioning of "{}"
for a font name - for enhanced text, yes, but not fontname.
So, shouldn't it be rather "" (empty) for the default fontname?

benjamin