Set default sigmas=1 in line source case

Former-commit-id: 30154592

code/input/linesource_SN.cfg

@@ -27,7 +27,7 @@ CFL_NUMBER = 0.7
 % Final time for simulation
 TIME_FINAL = 0.5
 % Reconstruction order
-RECONS_ORDER = 2
+RECONS_ORDER = 1
 %
 
 % ---- Boundary Conditions ----

code/src/common/config.cpp

@@ -260,7 +260,7 @@ void Config::SetConfigOptions() {
 
     // Linesource Testcase Options
     /*! @brief SCATTER_COEFF \n DESCRIPTION: Sets the scattering coefficient for the Linesource test case. \n DEFAULT 0.0 \ingroup Config */
-    AddDoubleOption( "SCATTER_COEFF", _sigmaS, 0.0 );
+    AddDoubleOption( "SCATTER_COEFF", _sigmaS, 1.0 );
 
     // CSD related options
     /*! @brief MAX_ENERGY_CSD \n DESCRIPTION: Sets maximum energy for the CSD simulation.\n DEFAULT \ingroup Config */