adressed linter

Author: Oussama3030

PWGLF/Tasks/Strangeness/sigmaanalysis.cxx

@@ -788,12 +788,11 @@ struct sigmaanalysis {
     if (eventSelections.maxIR >= 0 && interactionRate > eventSelections.maxIR) {
       return false;
     }
-    if (fillHists)
+    if (fillHists) {
       histos.fill(HIST("hEventSelection"), 19 /* Above max IR */);
-
-    // Fill centrality histogram after event selection
-    if (fillHists)
+      // Fill centrality histogram after event selection
       histos.fill(HIST("hEventCentrality"), centrality);
+    }
     histos.fill(HIST("hCentralityVsNch"), centrality, collision.multNTracksPVeta1());
 
     return true;
@@ -914,7 +913,7 @@ struct sigmaanalysis {
     fillGeneratedEventProperties(mcCollisions, collisions);
     std::vector<int> listBestCollisionIdx = getListOfRecoCollIndices(mcCollisions, collisions);
 
-    for (auto& genParticle : genParticles) {
+    for (const auto& genParticle : genParticles) {
       float centrality = 100.5f;
 
       // Has MC collision