Apparent bug in composing a file path on Windows OS

I fixed an apparent bug in composing a file path on Windows OS 8.
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How to fix the apparent bug
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Open the file, pkg/functions_lib.js
Replace, line 162 with:

let __dirname = path.dirname(new URL(import.meta.url).pathname);
__dirname=__dirname.substr(1);
console.log(__dirname);

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How to make the apparent bug to occur
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Run

$ deno run --allow-read --allow-net --allow-env --unstable deno/server.ts

error: Uncaught Error: ファイル名、ディレクトリ名、またはボリューム ラベルの構文が間違っています。 (os error 123)
    at processResponse (core.js:224:13)
    at Object.jsonOpSync (core.js:248:12)
    at Object.readDirSync (deno:cli/rt/30_fs.js:109:12)
    at new Context (snapshot_preview1.ts:310:41)
    at file:///O:/OneDrive/Git/IT/ProgramFiles_/rust/deno/ssvm-deno-starter-master/pkg/functions_lib.js:164:14