[tlbuild] memleak fix for synctex lib

[Norbert Preining]

On Mon, 04 Aug 2014, Peter Breitenlohner wrote:
> applied with a minor modification: we absolutely don't want declarations
> after statements in C.

Thanks!!!

Norbert

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PREINING, Norbert                               http://www.preining.info
JAIST, Japan                                 TeX Live & Debian Developer
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