fix: update patch in run_material_map_validation.sh

Author: wdconinc

scripts/material_map/run_material_map_validation.sh

@@ -42,7 +42,7 @@ diff -aru a/Examples/Scripts/MaterialMapping/Mat_map.C b/Examples/Scripts/Materi
 
      // 2D map for Validation input
      TCanvas *VM = new TCanvas("VM","Validation Map") ;
--    Val_file->Draw("mat_y:mat_z","fabs(mat_x)<1");
+-    Val_file->Draw("mat_y:mat_z","std::abs(mat_x)<1");
 +    Val_file->Draw("sqrt(mat_x**2+mat_y**2):mat_z>>mat_map1","(mat_z>-5000)&(mat_z<8000)");
 +    VM->SetGrid();