Set cut level properly

For some reason, the flag wasn't locked properly, so it gets overwritten when the egregious parameter setting code is executed again

Trigger/TrigValidation/TrigInDetValidation/test/test_trigID_all_ttbar_cl_pu40.py

@@ -25,7 +25,7 @@
 # art-output: *.dat 
 
 import os
-os.system("echo 'from InDetTrigRecExample.InDetTrigFlags import InDetTrigFlags ; InDetTrigFlags.cutLevel=15 ' > cutlevel.py ; cat cutlevel.py ")
+os.system("echo 'from InDetTrigRecExample.InDetTrigFlags import InDetTrigFlags ; InDetTrigFlags.cutLevel.set_Value_and_Lock(15) ' > cutlevel.py ; cat cutlevel.py ")
 
 Slices  = ['muon','electron','tau','bjet','fsjet']
 Events  = 4000