Fixing whitespace problems

llvm-svn: 111758
diff --git a/libcxx/test/input.output/iostream.objects/narrow.stream.objects/cin.pass.cpp b/libcxx/test/input.output/iostream.objects/narrow.stream.objects/cin.pass.cpp
index c72cdc8..ca0d6ca 100644
--- a/libcxx/test/input.output/iostream.objects/narrow.stream.objects/cin.pass.cpp
+++ b/libcxx/test/input.output/iostream.objects/narrow.stream.objects/cin.pass.cpp
@@ -22,7 +22,7 @@
     std::cout << "Enter a number: ";
     std::cin >> i;
     std::cout << "The number is : " << i << '\n';
-#else
+#else  // 0
     assert(std::cin.tie() == &std::cout);
 #endif
 }