[Bug fortran/69520] Implement reversal of -fcheck options

[anlauf at gmx dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69520

--- Comment #5 from Harald Anlauf <anlauf at gmx dot de> ---
Created attachment 37524
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37524&action=edit
Patch which uses prefix "no-"

Here you go.