MuonCondData: Fix cppcheck warning.

Prefer to initialize class members in an initialization list.

This merge request affects 1 package:

• MuonSpectrometer/MuonConditions/MuonCondGeneral/MuonCondData

This merge request affects 1 file:

• MuonSpectrometer/MuonConditions/MuonCondGeneral/MuonCondData/src/NswErrorCalibData.cxx

Adding @rosati ,@kluit ,@stavrop ,@jojungge ,@apsallid ,@pscholer as watchers

added MuonSpectrometer main review-pending-level-1 labels

CI Result SUCCESS (hash 216f72fe)

	Athena
externals
cmake
make
tests

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Athena: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-EL9 3644]

Changes look fine and the CI is good. Approving. Clara (L1)

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

merged

mentioned in commit 534809b4