code: public void setUseSystemsLocaleForFormat(boolean useSystemsLocale) {
          if (useSystemsLocaleForFormat != useSystemsLocale) {
              useSystemsLocaleForFormat = useSystemsLocale;
              getConfig().setProperty(USE_SYSTEMS_LOCALE_FOR_FORMAT_KEY, useSystemsLocaleForFormat);
          }
      }
docs: Sets whether or not the system's locale should be used for formatting.
  
  @param useSystemsLocale {@code true} if the system's locale should be used for formatting, {@code false} otherwise.
  @since 2.7.0
  @see #isUseSystemsLocaleForFormat()
  @see java.util.Locale.Category#FORMAT