Port bug 741014 - pymake is busted with make l10n-check - to help fix l10n repack bustage on Windows. rs=port-by-build-system-peer.

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extra : transplant_source : %04%E0%9D%87%ADC%83%C4%0A%FAA%C8%1B%E0%95%8Ay%88m%0A