[Bug libstdc++/120481] Incorrect format result for using specifier with multi-digit month, day or weekday

[tkaminsk at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120481

--- Comment #2 from Tomasz Kamiński <tkaminsk at gcc dot gnu.org> ---
For weekday, we could also consider printing !ok() values unmodified. They
always will be greater than 7, so there is no confusion in the output.