Address ldionne's comments

Author: winner245

libcxx/test/std/algorithms/alg.modifying.operations/alg.swap/iter_swap.pass.cpp

@@ -19,23 +19,25 @@
 #include "test_macros.h"
 
 #if TEST_STD_VER > 17
-constexpr bool test_swap_constexpr() {
-  int i = 1;
-  int j = 2;
-  std::iter_swap(&i, &j);
-  return i == 2 && j == 1;
+constexpr bool test_swap_constexpr()
+{
+    int i = 1;
+    int j = 2;
+    std::iter_swap(&i, &j);
+    return i == 2 && j == 1;
 }
 #endif // TEST_STD_VER > 17
 
-int main(int, char**) {
-  int i = 1;
-  int j = 2;
-  std::iter_swap(&i, &j);
-  assert(i == 2);
-  assert(j == 1);
+int main(int, char**)
+{
+    int i = 1;
+    int j = 2;
+    std::iter_swap(&i, &j);
+    assert(i == 2);
+    assert(j == 1);
 
 #if TEST_STD_VER > 17
-  static_assert(test_swap_constexpr());
+    static_assert(test_swap_constexpr());
 #endif // TEST_STD_VER > 17
 
   return 0;