// If any of this command's flags were passed explicitly, error
		// out, because they only make sense with arguments.
		//
		// Don't error if the flags came from GOFLAGS, since that can be
		// a reasonable use case. For example, imagine GOFLAGS=-v to
		// turn "verbose mode" on for all Go commands, which should not
		// break "go version".
		var argOnlyFlag string
		if !base.InGOFLAGS("-m") && *versionM {
			argOnlyFlag = "-m"