Fix casing of previewHeader function call

Author: njacazio

ALICE3/Core/FlatTrackSmearer.cxx

@@ -139,7 +139,7 @@ bool TrackSmearer::adoptTable(int pdg, const uint8_t* buffer, size_t size, bool
     return false;
   }
   try {
-    auto header = FlatLutData::PreviewHeader(buffer, size);
+    auto header = FlatLutData::previewHeader(buffer, size);
     if (header.pdg != pdg && !checkSpecialCase(pdg, header)) {
       LOGF(error, "LUT header PDG mismatch: expected %d, got %d", pdg, header.pdg);
       return false;
@@ -162,7 +162,7 @@ bool TrackSmearer::viewTable(int pdg, const uint8_t* buffer, size_t size, bool f
     return false;
   }
   try {
-    auto header = FlatLutData::PreviewHeader(buffer, size);
+    auto header = FlatLutData::previewHeader(buffer, size);
     if (header.pdg != pdg && !checkSpecialCase(pdg, header)) {
       LOGF(error, "LUT header PDG mismatch: expected %d, got %d", pdg, header.pdg);
       return false;