[Bug fortran/68950] [fortran] gfc_format_decoder cannot handle %qE

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68950

--- Comment #3 from vries at gcc dot gnu.org ---
Created attachment 37059
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37059&action=edit
tentative patch