fortran-check-all-num-for-matching-do

fortran-check-all-num-for-matching-do is a variable defined in `fortran.el'.
Its value is

nil

• This variable is safe as a file local variable if its value
  satisfies the predicate `booleanp'.

Documentation:
Non-nil causes all numbered lines to be treated as possible DO loop ends.

You can customize this variable.