commit c0d7d3e1a2fa96db15613cbd68a68c96966bc402 removed the usage of the LCMAP_BYTEREV flag in the call to LCMapStringW to workaround a strange bug in LCMapStringW. This patch didn't take a userspace call of wcsxfrm{_l} with NULL buffer and 0 size to evaluate the required buffer size into account. This introduced a crash trying to byte swap the NULL buffer. This patch fixes that problem. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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