message: Fluid-Build: Fix macOS has a different path delimiter and PATH environment variable needs to be capitialize
diff: @@ -182,7 +182,7 @@ export class BuildGraph {
  const startTime = Date.now();
  const ret = await execAsync(cleanScript, {
  cwd: pkg.directory,
  - env: { path: process.env["PATH"] + ";" + path.join(pkg.directory, "node_modules", ".bin") }
  + env: { PATH: `${process.env["PATH"]}${path.delimiter}${path.join(pkg.directory, "node_modules", ".bin")}` }
  });
  if (ret.error) {
  console.log(`${pkg.nameColored}: error during command ${cleanScript}`)
  