dbghelp : Cast pointer to char* instead of integer type.

[Erik de Castro Lopo]

Cast to char* instead if integer type and then do arithmetic on
char* pointers which is safe regardless of integer/pointer sizes.

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 dlls/dbghelp/dbghelp_private.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
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