[Samba] %U doesn't work in root postexec

[Robert Penz]

Paul Gienger writes: 

>> I've following in my smb.conf
>>  root postexec = /bin/rm /hades/samba/netlogon/scripts/%U.bat
> Have you tried using %u also?  There is a subtle difference between the 
> two, and they actually use %u in the smb.conf man page for postexec.

no, as 

  root preexec = /usr/local/sbin/ntlogon.py --user=%U  --os=%m -d 
/hades/samba/netlogon/scripts/ 

works. but I'll try it.