Fix wildcard imports from ROOT (they are forbidden now)

Calibration/EcalAlCaRecoProducers/test/nPU_mc.py

@@ -1,6 +1,6 @@
 import math
 import ROOT
-from ROOT import *
+from ROOT import gSystem, TH1F
 from DataFormats.FWLite import Events, Handle
 from PhysicsTools.PythonAnalysis import *
 #import print_options

Calibration/EcalAlCaRecoProducers/test/reRecoValidation.py

@@ -1,6 +1,6 @@
 import math
 import ROOT
-from ROOT import *
+from ROOT import gSystem, TH2F, gStyle
 from DataFormats.FWLite import Events, Handle
 from PhysicsTools.PythonAnalysis import *
 #import print_options

Calibration/EcalAlCaRecoProducers/test/recHitsValidation.py

@@ -1,6 +1,6 @@
 import math
 import ROOT
-from ROOT import *
+from ROOT import gSystem, TH2F
 from DataFormats.FWLite import Events, Handle
 from PhysicsTools.PythonAnalysis import *
 #import print_options

CondCore/PopCon/test/fetchCronLogTail.py

@@ -4,7 +4,6 @@
 import os, sys, re
 import string
 import math
-from ROOT import *
 import cx_Oracle
 import time
 

DQM/SiStripMonitorClient/scripts/DeadROC_duringRun.py

@@ -3,7 +3,7 @@
 from __future__ import print_function
 import sys
 import string
-from ROOT import *
+from ROOT import TFile
 from array import array
 
 def getFileInPath(rfile):