getFlagFrequencyBasedMinification method
Gets the frequency based minification flag value formatted for command-line usage.
Returns:
- Empty string if the flag is set to true or not provided
- '--no-frequency-based-minification'if the flag is set to false
Example:
final frequencyBasedMinificationFlag = argResults.getFlagFrequencyBasedMinification();
// Returns '' or '--no-frequency-based-minification'
Implementation
String getFlagFrequencyBasedMinification() =>
    this?['frequency-based-minification'] ?? true
        ? ''
        : '--no-frequency-based-minification';