flake8 fixes

DataQuality/DataQualityUtils/scripts/DQFileMove.py

DataQuality/DataQualityUtils/scripts/DQHistogramMerge.py

...ty/DataQualityUtils/scripts/DQHistogramPrintStatistics.py

DataQuality/DataQualityUtils/scripts/DQM_Tier0Wrapper_tf.py

DataQuality/DataQualityUtils/scripts/DQM_Tier0Wrapper_trf.py

DataQuality/DataQualityUtils/scripts/DQPostProcessTest.py

DataQuality/DataQualityUtils/scripts/DQWebDisplay.py

DataQuality/DataQualityUtils/scripts/DeMoLib.py

DataQuality/DataQualityUtils/scripts/DeMoScan.py

DataQuality/DataQualityUtils/scripts/DeMoSetup.py

DataQuality/DataQualityUtils/scripts/DeMoStatus.py

DataQuality/DataQualityUtils/scripts/DeMoUpdate.py

DataQuality/DataQualityUtils/scripts/ScanHistFile.py

DataQuality/DataQualityUtils/scripts/StandAloneDisplay.py

DataQuality/DataQualityUtils/scripts/checkCorrelInHIST.py

DataQuality/DataQualityUtils/scripts/dq_make_web_display.py

DataQuality/DataQualityUtils/scripts/hancool.py

DataQuality/DataQualityUtils/scripts/hancool_histo.py

DataQuality/DataQualityUtils/scripts/hotSpotInHIST.py

DataQuality/DataQualityUtils/scripts/hotSpotInTAG.py