[PATCH] wininet: Simplify header string handling in HTTP_HttpSendRequestW.

[Jacek Caban]

Spotted by Mark Jansen, avoids potential double-free.

Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
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 dlls/wininet/http.c | 21 ++++++++-------------
 1 file changed, 8 insertions(+), 13 deletions(-)