Typo in `XChaChaIETF.stream()`

[r4gus]

Zig Version

>= 0.12.0

Steps to Reproduce and Observed Behavior

Application doesn't compile when using XChaChaIETF(N).stream().

src/chacha.zig:257:34: error: expected 5 argument(s), found 4
            ChaChaIETF(rounds_nb).xor(out, counter, extended.key, extended.nonce);
            ~~~~~~~~~~~~~~~~~~~~~^~~~
src/chacha.zig:211:13: note: function declared here
        pub fn xor(out: []u8, in: []const u8, counter: u32, key: [key_length]u8, nonce: [nonce_length]u8) void {
        ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Expected Behavior

The application compiles.

The problem is a typo. XChaChaIETF.stream() should call ChaChaIETF.stream() instead of ChaChaIETF.xor().

[jedisct1]

Indeed. Thank you!