AddressSanitizer: add support for malloc_usable_size() function

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@148287 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/asan/asan_linux.cc b/lib/asan/asan_linux.cc
index 67acd52..2971290 100644
--- a/lib/asan/asan_linux.cc
+++ b/lib/asan/asan_linux.cc
@@ -233,7 +233,7 @@
   return false;
 }
 
-#else // __arm__
+#else  // __arm__
 
 struct DlIterateData {
   int count;
@@ -279,7 +279,7 @@
   return false;
 }
 
-#endif // __arm__
+#endif  // __arm__
 
 void AsanThread::SetThreadStackTopAndBottom() {
   if (tid() == 0) {