private int skipFlags(String formatString, int i) {
		for (; isFlag(formatString.charAt(i)); i++) {
			// Iterate through chars until all flags are skipped
		}
		return i - 1;
	}
Skips a series of flags within a format String. returns the index of the
format string at the last digit before another non-digit character

@param formatString format String
@param i      index into formatStr
@return new index into formatStr
Ghidra/Features/DecompilerDependent/src/main/java/ghidra/app/plugin/core/string/variadic/FormatStringParser.java