num2str works differently in 2.1.42,2.1.43

[Andy Adler]

I don't know whether this is a bug or intentional.
num2str now puts leading spaces.

I have some code that does:
  eval(['fname=p',num2str(idx),';']);
This no longer works.

$ /usr/bin/octave-2.1.36.exe -q
octave-2.1.36:1> ['fname=p',num2str(1),';']
ans = fname=p1;

$ /usr/local/oct2143-test/bin/octave-2.1.43.exe -q
octave-2.1.43:1> ['fname=p',num2str(1),';']
ans = fname=p          1;


Andy