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8e0b715954
* hello_compute: check for missing command-line args
Fixes off-by-one error when checking for missing arguments.
Before this, running the example gave this scary looking error message:
```
$ cargo run --bin wgpu-examples hello_compute
Finished dev [unoptimized + debuginfo] target(s) in 0.13s
Running `target/debug/wgpu-examples hello_compute`
[2023-12-27T22:14:26Z ERROR wgpu::backend::direct] Handling wgpu errors as fatal by default
thread 'main' panicked at 'wgpu error: Validation Error
Caused by:
In Device::create_bind_group
Buffer binding size 0 is less than minimum 4
note: buffer = `Storage Buffer`
', wgpu/src/backend/direct.rs:3139:5
```
As this was the first example I tried to run, it almost scared me
away, thinking it was a driver issue.
Instead, without arguments the example should use defaults.
* Add PR #4939 to changelog as instructed