Fortran tests: Revise line end tests allowing windows testing.
gcc/testsuite/ChangeLog:
* gfortran.dg/ISO_Fortran_binding_17.f90: Replace (\n|\r\n|\r)
with (\r*\n+).
* gfortran.dg/array_temporaries_2.f90: Likewise.
* gfortran.dg/bind-c-contiguous-1.f90: Likewise.
* gfortran.dg/bind-c-contiguous-4.f90: Likewise.
* gfortran.dg/bind-c-contiguous-5.f90: Likewise.
* gfortran.dg/fmt_error_4.f90: Likewise.
* gfortran.dg/fmt_error_5.f90: Likewise.
* gfortran.dg/fmt_float.f90: Likewise.
* gfortran.dg/fmt_l.f90: Likewise.
* gfortran.dg/fmt_nonchar_2.f90: Likewise.
* gfortran.dg/fmt_zero_precision.f90: Likewise.
* gfortran.dg/g77/f77-edit-apostrophe-out.f: Likewise.
* gfortran.dg/g77/f77-edit-colon-out.f: Likewise.
* gfortran.dg/g77/f77-edit-h-out.f: Likewise.
* gfortran.dg/g77/f77-edit-i-out.f: Likewise.
* gfortran.dg/g77/f77-edit-s-out.f: Likewise.
* gfortran.dg/g77/f77-edit-slash-out.f: Likewise.
* gfortran.dg/g77/f77-edit-t-out.f: Likewise.
* gfortran.dg/g77/f77-edit-x-out.f: Likewise.
* gfortran.dg/namelist_40.f90: Likewise.
* gfortran.dg/namelist_47.f90: Likewise.
* gfortran.dg/namelist_print_1.f: Likewise.
* gfortran.dg/parameter_array_dummy.f90: Likewise.