Minor fixes.

sql/database-migrate.txt

@@ -1040,7 +1040,7 @@ last_net_act,last_cpu_act,last_ext_act);
 
        To initialize run the initkey.pl script in this directory:
 
-		./initstats.pl | mysql tbdb
+		./initkey.pl | mysql tbdb
 
 1.196: Add new virt_programs table to hold the details of a program
        object.

sql/initkey.pl

@@ -17,7 +17,8 @@ $ENV{'PATH'} = '/bin:/usr/bin:/usr/sbin';
 delete @ENV{'IFS', 'CDPATH', 'ENV', 'BASH_ENV'};
 
 $query_result =
-    DBQueryFatal("select pid,eid from experiments");
+    DBQueryFatal("select pid,eid from experiments ".
+		 "where eventkey is null");
 
 while (($pid,$eid) = $query_result->fetchrow_array()) {
     my $secretkey = TBGenSecretKey();