[Bug other/102099] Diagnostics do not consider the user's locale when printing source lines

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102099

--- Comment #1 from Lewis Hyatt <lhyatt at gcc dot gnu.org> ---
Created attachment 51365
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51365&action=edit
Tested patch