[Bug fortran/66643] Missing compilation error for formatted data transfer without format

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66643

--- Comment #4 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Created attachment 37610
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37610&action=edit
A preliminary patch

Attached patch gives a diagnostic. Interestingly I found three test cases in
the test suite that use the invalid construct.