Fix misspelled TODO.

Change-Id: I0168e8cc4b8911576e7d9be72999c96dcc3d2fba
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/36864
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>

crypto/x509v3/v3name_test.cc

diff --git a/crypto/x509v3/v3name_test.cc b/crypto/x509v3/v3name_test.cc
index c1da9c8..2dcdd87 100644
--- a/crypto/x509v3/v3name_test.cc
+++ b/crypto/x509v3/v3name_test.cc
@@ -386,7 +386,7 @@
     }
 }
 
-// TOOD(davidben): Convert this test to GTest more thoroughly.
+// TODO(davidben): Convert this test to GTest more thoroughly.
 TEST(X509V3Test, NameTest) {
     const struct set_name_fn *pfn = name_fns;
     while (pfn->name) {