clang-format code with new clang

New clang, new formatting.

Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: Ib20e9ed59f6d6c22e65d54212a096f15071b77b3
diff --git a/format-code.sh b/format-code.sh
index 1eb2232..4f87080 100755
--- a/format-code.sh
+++ b/format-code.sh
@@ -13,7 +13,7 @@
 
 # Use the provided clang-format, only define a version
 # if we don't have one provided already
-export CLANG_FORMAT="${CLANG_FORMAT:-clang-format-11}"
+export CLANG_FORMAT="${CLANG_FORMAT:-clang-format-13}"
 
 # phosphor-mboxd is a fork of mboxbridge, the reference mbox daemon
 # implementation. mboxbridge is C written with the style of the Linux kernel.