cltt semicolon expected

[Oleg Gawriloff]

We have DHCP server (currently 4.1.1) with about 1k active leases. But 
on each server restart I saw following:
barzog at albatros:~>sudo /usr/local/etc/rc.d/isc-dhcpd restart
Stopping dhcpd.
Starting dhcpd.
Internet Systems Consortium DHCP Server 4.1.1
Copyright 2004-2010 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
/var/db/dhcpd/dhcpd.leases line 240308: semicolon expected.
   cltt
    ^
execute_statement argv[0] = /root/bin/dhcpd-accounting-wrapper.sh
execute_statement argv[1] = RELEASE
execute_statement argv[2] = 0
execute_statement argv[3] = 0
execute_statement argv[4] = 10.4.72.238
execute_statement argv[5] =
Wrote 0 deleted host decls to leases file.
Wrote 0 new dynamic host decls to leases file.
Wrote 95011 leases to leases file.
Listening on BPF/vlan2/00:1a:4b:a4:9a:66/10.254.254.0/24
Sending on   BPF/vlan2/00:1a:4b:a4:9a:66/10.254.254.0/24
Listening on BPF/vlan0/00:1a:4b:a4:9a:66/172.16.2.0/24
Sending on   BPF/vlan0/00:1a:4b:a4:9a:66/172.16.2.0/24
Sending on   Socket/fallback/fallback-net

In dhcpd.leases on this position (240308):
lease 10.4.72.138 {
   starts 5 2010/03/05 05:46:19;
   ends 6 2010/03/06 05:46:19;
   tstp 6 2010/03/06 05:46:19;
   cltt 5 2010/03/05 05:46:19;
   binding state active;
   next binding state free;
   hardware ethernet 00:1a:4d:95:c4:d7;
   uid "\001\000\032M\225\304\327";
   set clientmac = "00.1a.4d.95.c4.d7";
   set clientip = "10.4.72.138";
   set switchid = "10.254.194.39";
   set portid = "0.10";
   option agent.circuit-id 0:a;
   option agent.remote-id a:fe:c2:27;
   client-hostname "boomer";
   on expiry or release {
     set clientip =
        binary-to-ascii (10, 8, ".", leased-address) ;
     execute ("/root/bin/dhcpd-accounting-wrapper.sh", "RELEASE", "0", "0"
         , clientip, "");
   }
}

Number of active leases in leases file is suspectible high, I assume 
that on this error dhcpd is not freeing leases. Any ideas?

-- 
Signed, Oleg Gawriloff.

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