[libc++] Fix misleading indentation.

[brucem]

Summary

This was picked up via clang-tidy's readability-misleading-indentation
check.

[mclow.lists]

The second change is not quite right. There's a couple of lines that need indentation changes.
Phab is not really good about changes like this. "This file was changed only by adding or removing whitespace"

I'll just make these changes myself - thanks for calling them out.

[mclow.lists]

Committed as revision 324378

include/__string

 
 inline _LIBCPP_CONSTEXPR_AFTER_CXX14
 const wchar_t*
 char_traits<wchar_t>::find(const char_type* __s, size_t __n, const char_type& __a) _NOEXCEPT
 {
     if (__n == 0)
         return NULL;
 #if __has_feature(cxx_constexpr_string_builtins)
-        return __builtin_wmemchr(__s, __a, __n);
 #elif _LIBCPP_STD_VER <= 14
     return wmemchr(__s, __a, __n);
 #else
     for (; __n; --__n)
     {
         if (eq(*__s, __a))
             return __s;
         ++__s;

include/algorithm

__stable_sort_move(_RandomAccessIterator __first1, _RandomAccessIterator __last1, _Compare __comp,
     case 0:
         return;
     case 1:
         ::new(__first2) value_type(_VSTD::move(*__first1));
         return;
     case 2:
        __destruct_n __d(0);
         unique_ptr<value_type, __destruct_n&> __h2(__first2, __d);
-         if (__comp(*--__last1, *__first1))
         {
             ::new(__first2) value_type(_VSTD::move(*__last1));
             __d.__incr((value_type*)0);
             ++__first2;
             ::new(__first2) value_type(_VSTD::move(*__first1));
         }
         else
         {