[Bug libfortran/90374] Fortran 2018: Support d0.d, e0.d, es0.d, en0.d, g0.d and ew.d e0 edit descriptors for output

[thenlich+gccbug at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90374

--- Comment #12 from Thomas Henlich <thenlich+gccbug at gmail dot com> ---
The following:

program test
    write(*, "(e0.10e2)")  0.00314_4
end

results in error:

At line 2 of file test-f2018.f90 (unit = 6, file = 'stdout')
Fortran runtime error: Period required in format
(e0.10e2)
        ^