Merge "dist-one flag should be a boolean, not a string" into main

        parser.add_argument("--benchmark", nargs="*", default=[b.id for b in self._benchmarks],

                            metavar="BENCHMARKS",

                            help="Benchmarks to run.  Default suite will be run if omitted.")

        parser.add_argument("--dist-one", type=str,

        parser.add_argument("--dist-one", action="store_true",

                            help="Copy logs and metrics to the given dist dir. Requires that only"

                                + " one benchmark be supplied. Postroll steps will be skipped.")

                self._error(f"Invalid benchmark: {id}")

        # --dist-one requires that only one benchmark be supplied

        if len(self.Benchmarks()) != 1:

        if self._args.dist_one and len(self.Benchmarks()) != 1:

            self._error("--dist-one requires that exactly one --benchmark.")

        if self._had_error: