Description of problem:
When I write plot(rand(2,10),rand(2,10)) I get an eror message

Version-Release number of selected component (if applicable):
GNU Octave, version 2.1.36

How reproducible:
100%

Steps to Reproduce:
Type plot(rand(2,10),rand(2,10)) 
    
Actual results:
parse error:

>>> gplot tmp(:,1:10:11) , tmp(:,2:10:12) , tmp(:,3:10:13) , tmp(:,4:10:14) ,
tmp(:,5
error: evaluating if command near line 42, column 5
error: evaluating if command near line 41, column 3
error: called from `__plt2mm__' in file
`/usr/share/octave/2.1.36/m/plot/__plt2mm__.m'
error: called from `__plt2__' in file `/usr/share/octave/2.1.36/m/plot/__plt2__.m'
error: called from `__plt__' in file `/usr/share/octave/2.1.36/m/plot/__plt__.m'
error: called from `plot' in file `/usr/share/octave/2.1.36/m/plot/plot.m'

Expected results:
A graph should appear

Additional info:
When I write plot(rand(2,3),rand(2,3)), I get the graph that I want.