LArCalibTools: Fix cppcheck warnings.

Fix cppcheck warnings.

This merge request affects 1 package:

• LArCalorimeter/LArCalibTools

This merge request affects 3 files:

• LArCalorimeter/LArCalibTools/LArCalibTools/LArAverages2Ntuple.h
• LArCalorimeter/LArCalibTools/src/LArAverages2Ntuple.cxx
• LArCalorimeter/LArCalibTools/src/LArDigits2Ntuple.cxx

Adding @pavol as watcher

added JetEtmiss LAr master review-pending-level-1 labels

CI Result SUCCESS (hash 95e066bf)

	Athena	AthSimulation	AthGeneration	AnalysisBase	AthAnalysis	DetCommon
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
AthAnalysis: number of compilation errors 0, warnings 0
DetCommon: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 42687]

Approving -- L1

added review-approved label and removed review-pending-level-1 label

mentioned in commit d20441df

merged

added sweep:ignore label