[Bug fortran/91253] [9/10 Regression] gfortran.dg/continuation_6.f fails when using -pre_include as done with latest glibc

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91253

--- Comment #3 from Martin Liška <marxin at gcc dot gnu.org> ---
Thank you Tobias for the fix.