slml2info fails on demo2D01

The error doesn't seem exclusive to `demo2D01`. Test on

* `demo3D11`
* `demo3D12`

The error message
```
slml2info lamp2.mat
Attempting to read input file lamp2.mat
Evaluating lines from input file
Error using eval
Undefined function or variable 'MATLAB'.

Error in slml2info (line 59)

MATLAB:UndefinedFunction
```