RFR - 6480539: BigDecimal.stripTrailingZeros() should specify no-op on zero BigDecimals

[Paul Benedict]

I am chiming in to agree with Stephen. About a year ago, I encountered the
same issue and was extremely dissatisfied with the behavior. I was forced
to create a utility method to check for "0" before passing it onto
stripTrailingZeros(). The current behavior is useless; the spec is clear
stripping extra zeros means exactly that.