It's unclear what's intended in CurrencyFormat of cli

[thecockatiel]

bisq/cli/src/main/java/bisq/cli/CurrencyFormat.java

Lines 42 to 46 in 0fea955

	// Use the US locale as a base for all DecimalFormats, but commas should be omitted from number strings.
	private static final DecimalFormatSymbols DECIMAL_FORMAT_SYMBOLS = DecimalFormatSymbols.getInstance(Locale.US);
	// Use the US locale as a base for all NumberFormats, but commas should be omitted from number strings.
	private static final NumberFormat US_LOCALE_NUMBER_FORMAT = NumberFormat.getInstance(Locale.US);

In comment of both DECIMAL_FORMAT_SYMBOLS and US_LOCALE_NUMBER_FORMAT it is mentioned that commas should be omitted from number strings, but US_LOCALE_NUMBER_FORMAT produces strings that include comma

is this intended ? if so the comment needs to be updated
if not, then the formatting is producing incorrect results

also rounding mode in formatPrice is a bit vague:

bisq/cli/src/main/java/bisq/cli/CurrencyFormat.java

Line 106 in 0fea955

US_LOCALE_NUMBER_FORMAT.setRoundingMode(UNNECESSARY);

was the intention to simply truncate the price and not round it ? because java docs show that UNNECESSARY rounding throws ArithmeticException in many cases:
https://docs.oracle.com/javase/8/docs/api/java/math/RoundingMode.html