[Bug fortran/83560] list-directed formatting of INTEGER is missing plus on output when output open with SIGN='PLUS'

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83560

--- Comment #7 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Patch posted here:

https://gcc.gnu.org/ml/fortran/2017-12/msg00089.html