Please consider the following formatting changes

Author: Ana Marin Garcia

PWGEM/PhotonMeson/Utils/NMHistograms.h

@@ -18,8 +18,8 @@
 
 #include "PWGEM/PhotonMeson/Utils/MCUtilities.h"
 
-#include <CommonConstants/PhysicsConstants.h>
 #include <CommonConstants/MathConstants.h>
+#include <CommonConstants/PhysicsConstants.h>
 #include <Framework/Concepts.h>
 #include <Framework/HistogramRegistry.h>
 #include <Framework/HistogramSpec.h>