Character array constructor

[FortranFan]

@Harper

… There may of course be a good reason that I don’t know why f2023 does not permit the brief form.

TL;DR:

1. Fortran standard does not support what is a jagged array in CS parlance,
2. The array is constructed independently (e.g., in a var = expr assignment, how RHS expr gets defined) and therefore, the array element length needs to be specified toward the construction.