Do we need a line truncation error?

[HarshitaKalani]

#3416
Ref: #4036

program main
    implicit none
    print *, (unpack([23.12000084, 23.12000084, 23.12000084, 23.12000084], [.true., .false., .true., .false.], [1.00000000, 2.00000000, 3.00000000, 4.00000000]))
end program main

$ lfortran b.f90
2.31200008e+01 2.00000000e+00 2.31200008e+01 4.00000000e+00 
$ gfortran b.f90 && ./a.out
b.f90:6:132:

    6 |     print *, (unpack([23.12000084, 23.12000084, 23.12000084, 23.12000084], [.true., .false., .true., .false.], [1.00000000, 2.00000000, 3.00000000, 4.00000000]))
      |                                                                                                                                    1
Error: Line truncated at (1) [-Werror=line-truncation]
b.f90:6:132:

    6 |     print *, (unpack([23.12000084, 23.12000084, 23.12000084, 23.12000084], [.true., .false., .true., .false.], [1.00000000, 2.00000000, 3.00000000, 4.00000000]))
      |                                                                                                                                    1
Error: Syntax error in array constructor at (1)
f951: some warnings being treated as errors

[HarshitaKalani]

The above code is generated when we do the following

 program main
     print *, unpack([23.12, 23.12, 23.12, 23.12], [.true., .false., .true., .false.], [1.0, 2.0, 3.0, 4.0])
 end

$ lfortran b.f90 --show-fortran
program main
implicit none
print *, (unpack([23.12000084, 23.12000084, 23.12000084, 23.12000084], [.true., .false., .true., .false.], [1.00000000, 2.00000000, 3.00000000, 4.00000000]))
end program main

So we need to make sure that when we do --show-fortran, it also takes care that the length of one line of code does not exceed the standard length ( 132 characters I believe)