continuation?

[Vic Norton]

What is the new continuation character? Please don't tell me that no
command or assignment will be allowed to take up more than one line.

Octave 3.6.4
octave> x = [1 2 3 \
> 4 5 6]
x =

   1   2   3   4   5   6

Octave 3.8.0
octave-cli-3.8.0> x = [1 2 3 \
warning: using continuation marker \ outside of double quoted strings is
deprecated and will be removed in a future version of Octave
> 4 5 6]
x =

   1   2   3   4   5   6