[NFC][libc++] Consistently use spaces to indent

rdar://problem/19988944

llvm-svn: 338933
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 7c3492b00d99c81d4a58a8015dbe313eabaea799
diff --git a/include/functional b/include/functional
index 6b70f73..b91fd75 100644
--- a/include/functional
+++ b/include/functional
@@ -1006,7 +1006,7 @@
 {
     _Predicate __pred_;
 public:
-    _LIBCPP_INLINE_VISIBILITY explicit _LIBCPP_CONSTEXPR_AFTER_CXX11 
+    _LIBCPP_INLINE_VISIBILITY explicit _LIBCPP_CONSTEXPR_AFTER_CXX11
     binary_negate(const _Predicate& __pred) : __pred_(__pred) {}
 
     _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
@@ -1405,7 +1405,7 @@
 #ifndef _LIBCPP_NO_EXCEPTIONS
     throw bad_function_call();
 #else
-	_VSTD::abort();
+    _VSTD::abort();
 #endif
 }
 
@@ -1790,7 +1790,7 @@
         typedef __function::__func<_Fp, _Alloc, _Rp(_ArgTypes...)> _FF;
         typedef typename __rebind_alloc_helper<__alloc_traits, _FF>::type _Ap;
         _Ap __a(__a0);
-        if (sizeof(_FF) <= sizeof(__buf_) && 
+        if (sizeof(_FF) <= sizeof(__buf_) &&
             is_nothrow_copy_constructible<_Fp>::value && is_nothrow_copy_constructible<_Ap>::value)
         {
             __f_ = ::new((void*)&__buf_) _FF(_VSTD::move(__f), _Alloc(__a));
@@ -2497,7 +2497,7 @@
 class _LIBCPP_TYPE_VIS default_searcher {
 public:
     _LIBCPP_INLINE_VISIBILITY
-    default_searcher(_ForwardIterator __f, _ForwardIterator __l, 
+    default_searcher(_ForwardIterator __f, _ForwardIterator __l,
                        _BinaryPredicate __p = _BinaryPredicate())
         : __first_(__f), __last_(__l), __pred_(__p) {}