It seems that somebody already had posted info about bug with
Exec-Program-Wait
I noticed it after upgrade from freeradius 0.4 to 0.7
---
radius_xlat: '/usr/local/bin/checklin 217.12.X.X'
Exec-Program: /usr/local/bin/checklin 217.12.X.X
Exec-Program: Abnormal child exit
Sending Access-Reject of id 128 to 217.12.X.X:1645
Reply-Message = "\r\nAccess denied (external check failed)."-- cron-ripe - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
