NSWCalibTools: Fix clang warnings.

Missing override keywords.

This merge request affects 1 package:

• MuonSpectrometer/MuonCalib/NSWCalib/NSWCalibTools

Adding @rosati ,@nkoehler ,@wleight as watchers

added MuonSpectrometer master review-pending-level-1 labels

CI Result FAILURE (hash f29b7f27)

	Athena	AthSimulation	AnalysisBase	AthGeneration
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 1, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 17352]

Unrelated failure.

Jenkins please try a rebuild

Approving

Jason (L1)

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

merged

mentioned in commit 6116940a

added sweep:ignore label