tests: minor edits

Author: fnrizzi

examples/kokkos-based/add_kokkos.cpp

@@ -9,7 +9,7 @@ void print_elements(const T1 & v, const std::vector<ScalarType> & gold)
     std::cout << "computed = " << v(i)
 	      << " , gold = "
 	      << gold[i]
-	      << std::endl;
+	      << "\n";
   }
 }
 

examples/kokkos-based/dot_kokkos.cpp

@@ -33,7 +33,7 @@ int main(int argc, char* argv[])
     printf("Seq result    = %lf\n", res_seq);
 
     // This forwards to KokkosKernels
-    auto res_kk = stdla::dot(KokkosKernelsSTD::kokkos_exec<>(), a, b, init_value);
+    const auto res_kk = stdla::dot(KokkosKernelsSTD::kokkos_exec<>(), a, b, init_value);
     printf("Kokkos result = %lf\n", res_kk);
   }
   Kokkos::finalize();

examples/kokkos-based/dotc_kokkos.cpp

@@ -35,7 +35,7 @@ int main(int argc, char* argv[])
     std::cout << "Seq result    = " << res_seq << "\n";
 
     // This forwards to KokkosKernels
-    auto res_kk = stdla::dotc(KokkosKernelsSTD::kokkos_exec<>(), a, b, init_value);
+    const auto res_kk = stdla::dotc(KokkosKernelsSTD::kokkos_exec<>(), a, b, init_value);
     std::cout << "Kokkos result = " << res_kk << "\n";
   }
   Kokkos::finalize();