[NFC][libc++] Update clang-format style.

Changes the style as requested by @ldionne in D103368.

Reviewed By: ldionne, #libc, Quuxplusone

Differential Revision: https://reviews.llvm.org/D109835

diff --git a/libcxx/.clang-format b/libcxx/.clang-format
index cfa0c289635c59c0d9e0a9941085fece52d7eccc..4598f60a0090ecf6ceea3b43d078ccdfcc10d185 100644 (file)
--- a/libcxx/.clang-format
+++ b/libcxx/.clang-format
@@ -11,6 +11,9 @@ PointerAlignment: Left
 SortIncludes: false
 ReflowComments: false
 
+# libc++'s preferred indentions of preprocessor statements.
+IndentPPDirectives: AfterHash
+
 # libc++ has some long names so we need more than the 80 column limit imposed by LLVM style, for sensible formatting
 ColumnLimit: 120
 ---