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85a0e28b
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2012-08-14T10:50:58
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Make git_message_prettify return bytes written
If you want to be absolutely safe with git_message_prettify, you
can now pass a NULL pointer for the buffer and get back the number
of bytes that would be copied into the buffer.
This means that an error is a non-negative return code and a
success will be greater than zero from this function.
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