pub fn parse_byte_size(s: &str) -> Result<u64, String>Expand description
Parse a byte size: a bare integer (bytes) or an integer followed by a
binary unit suffix (K/KiB/KB, M/MiB/MB, G/GiB/GB, all
powers of 1024). Returns the size in bytes. The error is a String so it
renders directly in clap’s value_parser diagnostics.