std: Harmonize use of off_t between libc and Zig impls

Let's follow the libc/kernel convention and use an i64 for offsets, we
bitcast as needed and avoid the useless conditional casts.
31f1cc9a0dLemonBoy committed on 5/11/2021, 10:33:48 AMparentf4a0528
4 files changedLine totals unavailable