make sw_ooxmlsdrexport 'work' on mac

Change-Id: I35558dfb71007932e9a371408e6306216cfbd0f9
coverity#738738: Unitialized scalar field

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coverity#738737: Unitialized scalar field

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coverity#738725: Unitialized scalar field

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coverity#738726: Unitialized scalar field

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coverity#738727: Unitialized scalar field

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coverity#738724: Unitialized scalar field

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coverity#738723: Unitialized scalar field

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coverity#738722: Unitialized scalar field

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