xAODMetaData: Fix cppcheck warning.

Pass container by const reference, not by value.

This merge request affects 1 package:

• Event/xAOD/xAODMetaData

This merge request affects 2 files:

• Event/xAOD/xAODMetaData/Root/FileMetaData_v1.cxx
• Event/xAOD/xAODMetaData/xAODMetaData/versions/FileMetaData_v1.h

Adding @akraszna as watcher

added EDM analysis-review-required master review-pending-level-1 labels

CI Result SUCCESS (hash d7ac6d4c)

	Athena	AthSimulation	AthGeneration	AnalysisBase	AthAnalysis	DetCommon
externals
cmake
make
tests

Full details available on this CI monitor view. Check the JIRA CI status board for known problems
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 58936]

Looks good. Approved

Sergei L1

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

added analysis-review-approved label and removed analysis-review-required label

merged

mentioned in commit 27250763

added sweep:ignore label