[Cooker] proftpd 1.2.2 (release and rc2) big files corruption problem

[Ural Khassanov]

Hi

Proftpd 1.2.2 release and rc2 packages all have this bug on my 8.0 server: 
downloaded files >1mb in size are corrupted.
I downloaded 1417694b tar.gz file 3 times over modem connection and got 100% 
file corruption. Tested with many ftp clients as well.
All packages were rebuilt from src without any errors.
rc1.3 from 8.0 distribution doesn't have this problem and works very well.

Please test and don't include faulty versions in upcoming 8.1 release.