Remove superfluous newlines

src/test-gradient-method.cc

@@ -473,25 +473,25 @@ void testSteepFunction() {
 int main() {
   try {
     testIdentity();
-    std::cout << std::endl << std::endl << std::endl;
+    std::cout << std::endl;
     testSampleFunction();
-    std::cout << std::endl << std::endl << std::endl;
+    std::cout << std::endl;
     testSampleFunctionNonsmooth();
-    std::cout << std::endl << std::endl << std::endl;
+    std::cout << std::endl;
     testTrivialFunction();
-    std::cout << std::endl << std::endl << std::endl;
+    std::cout << std::endl;
     testHorribleFunction();
-    std::cout << std::endl << std::endl << std::endl;
+    std::cout << std::endl;
     testHorribleFunctionLogarithmic();
-    std::cout << std::endl << std::endl << std::endl;
+    std::cout << std::endl;
     testSampleFunction2();
-    std::cout << std::endl << std::endl << std::endl;
+    std::cout << std::endl;
     testSampleFunction3D();
-    std::cout << std::endl << std::endl << std::endl;
+    std::cout << std::endl;
     testSampleFunctionSteep1();
-    std::cout << std::endl << std::endl << std::endl;
+    std::cout << std::endl;
     testSampleFunctionSteep2();
-    std::cout << std::endl << std::endl << std::endl;
+    std::cout << std::endl;
     testSteepFunction();
     return 0;
   }