When neither the "legacy vsprintf null termination" nor the "standard
snprintf behaviour" flags are specified, the functions return -2 when
the output string didn't fit (similar to old style msvcrt _snprintf that
returned -1), but they are null terminated (similar to the C99 snprintf
style behaviour). This is the same way as the C99 swprintf function
behaves.
Signed-off-by: Martin Storsjo <martin@martin.st>
Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>