Small fix for an off by one in a code example. The current code results in thread 58787 panic: index out of bounds: index 2, len 2 when running zig build run -- --input-file. With the fix, the same command results in the expected expected arg after '--input-file'.
Small fix for an off by one in a code example. The current code results in `thread 58787 panic: index out of bounds: index 2, len 2` when running `zig build run -- --input-file`. With the fix, the same command results in the expected `expected arg after '--input-file'`.