Change to named macro

git-svn-id: http://root.cern.ch/svn/root/trunk@17164 27541ba8-7e3a-0410-8455-c3a389f83636

tutorials/fit/fitslicesy.C

-{
+void fitslicesy() {
 //
 // To see the output of this macro, click begin_html <a href="gif/fitslicesy.gif" >here</a> end_html
 //    This macro illustrates how to use the TH1::FitSlicesY function
@@ -9,8 +9,6 @@
 //    some pad parameters.
 //Author: Rene Brun
    
-   gROOT->Reset();
-
 // Change some default parameters in the current style
    gStyle->SetLabelSize(0.06,"x");
    gStyle->SetLabelSize(0.06,"y");

tutorials/geom/xtruDraw.C

-{
+void xtruDraw() {
 // Draw a "representative" TXTRU shape
 // Canvas saved as xtru.gif can be used for TXTRU THtml output
 // Author: Robert Hatcher (rhatcher@fnal.gov) 2000.09.06
 
-  gROOT->Reset();
-
-  canvas = new TCanvas("xtru","Example XTRU object",200,10,640,640);
+  TCanvas *canvas = new TCanvas("xtru","Example XTRU object",200,10,640,640);
 
 // Create a new geometry
   TGeometry* geometry = new TGeometry("geometry","geometry");