#83 TDbfFile.InitDefaultBuffer - please correct

[Karel Rys]

Hi, in procedure TDbfFile.InitDefaultBuffer, please make these changes:

1) Set FNullField AFTER setting all fields to spaces or zeroes. Now you set FNullField to FFs and immediatelly overwrite it with zeroes, so the fields are not set to null.

2) Field of type 'T' (tDateTime) should be initialized to zeros, so please add 'T' to the CharInSet(... test.

Kind regards, Karel