Re-run clang-format with InsertBraces.

This CL runs the same command as in the preceding CL, but with
'IncludeBraces: true' added to .clang-format. I've split this out
separately because the documentation says:

> Setting this option to true could lead to incorrect code formatting
> due to clang-format’s lack of complete semantic information. As such,
> extra care should be taken to review code changes made by this option.

I've also kept InsertBraces out of .clang-format for now because it's a
fairly recent option, and clang-format fails when it sees unrecognized
options.

Change-Id: I305ea7bb2633704053a1f8de1e11b037b9fc8a76
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/53086
Commit-Queue: Bob Beck <bbe@google.com>
Reviewed-by: Bob Beck <bbe@google.com>
diff --git a/crypto/x509/a_digest.c b/crypto/x509/a_digest.c
index a4dc37a..adc6313 100644
--- a/crypto/x509/a_digest.c
+++ b/crypto/x509/a_digest.c
@@ -85,8 +85,9 @@
   unsigned char *str = NULL;
 
   i = ASN1_item_i2d(asn, &str, it);
-  if (!str)
+  if (!str) {
     return (0);
+  }
 
   ret = EVP_Digest(str, i, md, len, type, NULL);
   OPENSSL_free(str);