[PATCH, libgfortran] Fix for PR24699, PR24700, PR24719]

[Jerry DeLisle]

I have a curious problem.  When I save the test case pr24699.f90 to the 
testsuite/gfortran.dg directory and run make check-fortran it fails.  When I 
compile and run in my working directory it passes.

Here it is:  Is there something wrong with implementation of "scratch"?

! { dg-do run }
! pr24699, handle end-of-record on READ with T format
! test contributed by Jerry DeLisle <jvdelisle@gcc.gnu.org>
       character*132 :: foost1, foost2, foost3
       open (11, status="scratch")
       write(11, '(a)') "ab cdefghijkl mnop qrst"
       write(11, '(a)') "123456789 123456789 123456789"
       write(11, '(a)') "  Now is the time for all good."
       rewind(11)

       read (11, '(a040,t1,040a)', end = 999)  foost1 , foost2
       if (foost1.ne.foost2) call abort()

       read (11, '(a032,t2,a032t3,a032)', end = 999)  foost1 , foost2, foost3
       if (foost1(1:32).ne."123456789 123456789 123456789   ") call abort()
       if (foost2(1:32).ne."23456789 123456789 123456789    ") call abort()
       if (foost3(1:32).ne."3456789 123456789 123456789     ") call abort()

       read (11, '(a017,t1,a0017)', end = 999)  foost1 , foost2
       if (foost1.ne.foost2) call abort()
       if (foost2(1:17).ne."  Now is the time ") call abort()
       goto 1000
  999  call abort()
  1000 continue
       close(11)
       end