RFR: 8247918: Clarify Reader.skip behavior for end of stream [v2]

[liach]

On Fri, 12 Feb 2021 16:11:58 GMT, Roger Riggs <rriggs at openjdk.org> wrote:

>> Brian Burkhalter has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   8247918: Change'ns' to 'n' in the skip doc
>
> The use of @ inheritdoc causes some unexpected changes in the javadoc, dropping the skip method from several classes.

I personally suggest moving this clarification into a separate paragraph as opposed to appending it to the first sentence.

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PR: https://git.openjdk.java.net/jdk/pull/2274