egammaLayerRecalibTool : fix PS histogram loading
The histograms used to do the layer calibration tune in the root file are TH1D, but PS histograms were read as TH1F, creating a runtime error in debug mode. This MR should fix that.
tagging @christos
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The histograms used to do the layer calibration tune in the root file are TH1D, but PS histograms were read as TH1F, creating a runtime error in debug mode. This MR should fix that.
tagging @christos