numArgs := len(call.Args) - firstArg
		pass.ReportRangef(call, "%s call needs %v but has %v", fn.FullName(), count(expect, "arg"), count(numArgs, "arg"))
	}
}

// parseFlags accepts any printf flags.
func (s *formatState) parseFlags() {
	for s.nbytes < len(s.format) {
		switch c := s.format[s.nbytes]; c {
		case '#', '0', '+', '-', ' ':
			s.flags = append(s.flags, c)
			s.nbytes++
		default:
			return

// options selected through the flags package.
func PProf(eo *plugin.Options) error {
	// Remove any temporary files created during pprof processing.
	defer cleanupTempFiles()

	o := setDefaults(eo)

	src, cmd, err := parseFlags(o)
	if err != nil {
		return err
	}

	p, err := fetchProfiles(src, o)
	if err != nil {
		return err
	}

	if cmd != nil {
		return generateReport(p, cmd, currentConfig(), o)
	}

	} else {
		err = funcOutput(profile, *output)
	}

	if err != nil {
		fmt.Fprintf(os.Stderr, "cover: %v\n", err)
		os.Exit(2)
	}
}

// parseFlags sets the profile and counterStmt globals and performs validations.
func parseFlags() error {
	profile = *htmlOut
	if *funcOut != "" {
		if profile != "" {
			return fmt.Errorf("too many options")
		}
		profile = *funcOut
	}