[PATCH users/roland/safe-ctype] Uniformly put `#include "safe-ctype.h"` last among #include directives

[Tom Tromey]

>>>>> "Roland" == Roland McGrath via Gdb-patches <gdb-patches@sourceware.org> writes:

Roland> I didn't touch anything in the libiberty subdirectory since AIUI
Roland> that's still copied from the gcc repository.

There's also this patch to fix it differently:

https://sourceware.org/pipermail/gdb-patches/2023-April/198954.html

which isolates the damage to gdb.

Tom