[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/any b/include/any
index 9bd2f53..e6e0b6e 100644
--- a/include/any
+++ b/include/any
@@ -110,7 +110,7 @@
 #ifndef _LIBCPP_NO_EXCEPTIONS
     throw bad_any_cast();
 #else
-	_VSTD::abort();
+    _VSTD::abort();
 #endif
 }