RFR: JDK-8286256 : Update libxml2 to 2.9.14 [v2]

[Hima Bindu Meda]

On Tue, 17 May 2022 17:24:11 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> Hima Bindu Meda has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Add UPDATING.txt for libxslt update
>
> modules/javafx.web/src/main/native/Source/ThirdParty/libxslt/UPDATING.txt line 15:
> 
>> 13:         >  cscript configure.js compiler=msvc xslt_debug=no  iconv=no mem_debug=no modules=no  zlib=no profiler=no trio=no
>> 14:         - Above command generates a header file 'src/config.h' file (on all platforms) and libxslt\src\libxslt\xsltconfig.h.
>> 15: 4.1 Copy `libxslt\src\config.h` to `libxslt\win32\config.h'. config.h file defines several macros to control libxslt features. We do not require all of the features to be enabled. 
> 
> Minor: trailing whitespace (since this is a text file, jcheck won't complain, but since you will be editing this file anyway, maybe you can fix this).

Done

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PR: https://git.openjdk.java.net/jfx/pull/797