Add a missing "%s\n" to fprintf()
Add a missing "%s\n" to fprintf()

This was the result of a copy'n'paste error in commit
b731dc6d7f41b41249db18247113ff858f544534.  The original fprintf() call
only output "mexext", "matlabroot", and "computer", whereas the new one
also output "version".  I only noticed this by accident when trying to
fix support for non-student MATLAB versions (see the following commit),
because of course in MATLAB fprintf("%s\n", ...) also works with more
than one argument.  How "helpful".

marcecj/scons_matlab