War on tabs.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@185865 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/chrono b/include/chrono
index 4ceb875..c6eef8f 100644
--- a/include/chrono
+++ b/include/chrono
@@ -728,8 +728,8 @@
 
     // arithmetic
 
-	_LIBCPP_INLINE_VISIBILITY time_point& operator+=(const duration& __d) {__d_ += __d; return *this;}
-	_LIBCPP_INLINE_VISIBILITY time_point& operator-=(const duration& __d) {__d_ -= __d; return *this;}
+    _LIBCPP_INLINE_VISIBILITY time_point& operator+=(const duration& __d) {__d_ += __d; return *this;}
+    _LIBCPP_INLINE_VISIBILITY time_point& operator-=(const duration& __d) {__d_ -= __d; return *this;}
 
     // special values
 
diff --git a/include/utility b/include/utility
index a2cafbf..bea463b 100644
--- a/include/utility
+++ b/include/utility
@@ -692,10 +692,10 @@
 _LIBCPP_INLINE_VISIBILITY inline
 _T1 exchange(_T1& __obj, _T2 && __new_value)
 {
-	_T1 __old_value = _VSTD::move(__obj);
-	__obj = _VSTD::forward<_T2>(__new_value);
-	return __old_value;
-}	
+    _T1 __old_value = _VSTD::move(__obj);
+    __obj = _VSTD::forward<_T2>(__new_value);
+    return __old_value;
+}    
 #endif  // _LIBCPP_STD_VER > 11
 
 _LIBCPP_END_NAMESPACE_STD