Fix defects ( passed by value) reported by cppcheck

Fix defects ( passed by value) reported by cppcheck

@sroe

MuonSpectrometer/Amdcsimrec/AmdcStand/src/GetAmdcsimrecVariable.cxx

@@ -9,7 +9,7 @@
 
 // Get Amdcsimrec REAL (double) Variable -------------------------------------------
 
-double       GetAmdcRealVar(const std::string& VarName, int I1, int I2, int I3){
+double       GetAmdcRealVar(std::string VarName, int I1, int I2, int I3){
   char NAMEVAR[40];
   int Long = VarName.size();
   if( Long > 40 ){ Long = 40; }
@@ -21,7 +21,7 @@ double       GetAmdcRealVar(const std::string& VarName, int I1, int I2, int I3){
 
 // Get Amdcsimrec INTEGER (int) Variable -------------------------------------------
 
-int          GetAmdcIntVar(const std::string& VarName, int I1, int I2, int I3){
+int          GetAmdcIntVar(std::string VarName, int I1, int I2, int I3){
   char NAMEVAR[40];
   int Long = VarName.size();
   if( Long > 40 ){ Long = 40; }
@@ -33,7 +33,7 @@ int          GetAmdcIntVar(const std::string& VarName, int I1, int I2, int I3){
 
 // Get Amdcsimrec CHARACTER (std::string) Variable ---------------------------------
 
-std::string  GetAmdcCharVar(const std::string& VarName, int I1, int I2, int I3){
+std::string  GetAmdcCharVar(std::string VarName, int I1, int I2, int I3){
   char NAMEVAR[40];
   int Long = VarName.size();
   if( Long > 40 ){ Long = 40; }