Fixed a typo in functional test

Core/StandardSamples/MaterialBySLDBuilder.cpp

@@ -8,7 +8,7 @@ MaterialBySLDBuilder::MaterialBySLDBuilder()
     : m_number_of_layers(10)
     , m_si {4.1491e-6, 4.99e+1, 0.171 * Units::barn} // [nm, nm^{-3}, nm^2]
     , m_ti {-3.438e-6, 5.67e+1, 6.09 * Units::barn * 1e+4} // [nm, nm^{-3}, nm^2]
-    , m_ni {1.3e-5, 9.15e+1, 4.49 * Units::barn}    // [nm, nm^{-3}, nm^2]
+    , m_ni {1.03e-5, 9.15e+1, 4.49 * Units::barn}    // [nm, nm^{-3}, nm^2]
     , m_thick_ti(3.0) // nm
     , m_thick_ni(7.0) //nm
 {}