Improve handling of unicode on Windows
Disable a few crates on Windows that abuse unix APIs too much
Signed-off-by: Peter Atashian <retep998@gmail.com>
This commit updates `cut` to build on rust nightly.
In addition, it adds support for null input and output delimiters,
and fixes a bug in the `cut_characters()` function that would cause
incorrect output when two adjacent fields were specified in the range
list.
This patch begins the work of modernizing uutils to work with 1.0-ish
Rust. In particular, it
1. Updates to the latest submodules.
2. Convert mkmain.rs, mkuutils.rs, and src/uutils/uutils.rs
to new slice syntax and use of new io, fs, and path APIs.
3. Convert src/common/util.rs to new io, fs, and path APIs.
4. Convert fmt to use new APIs.
