JuliaLang/julia — pull request #493 by nolta (2012-02-29 00:55:34+00:00)
Title: better undefined reference handling in show()

I'm not sure if this is a bug, but currently:

```
julia> x = cell(2,1)
2x1 Any Array:
access to undefined reference
```

After this patch:

```
julia> x = cell(2,2)
2x2 Any Array:
undef undef
undef undef

julia> x[1,1] = 1.
2x2 Any Array:
1.0 undef
undef undef
```