[patch, libfortran] PR37083 Formatted read of line without trailing new-line fails

[Tobias Burnus]

Jerry DeLisle wrote:
> This one was a little tricky.
> The attached patch fixes this by backing up a bit on the patch for PR34676
> and adding an error check at the end of finish_list_read.
>
> Regression tested and NIST tested on x86-64.
> OK for trunk?

It is not completely obvious, but it looks OK. Hopefully with have not
missed some special case.

Tobias