method errorno returned -1 on success instead of 0 , see #298
method errorno returned -1 on success instead of 0 , see #298

The method incorrectly returned -1 for success instead of 0. In addition, the method attempted to distinguish between warnings and errors produced by the SQL Server parameter "WarningsReturnAsErrors" when logging was enabled, but in ADOdb logging this parameter is always set false so the code was removed.
ipso/ADOdb,ipso/ADOdb