Fix documentation typo. Change-Id: Iaa05acf1f775b0b35cc99e5f2c048f4e70f0a899 Reviewed-on: https://boringssl-review.googlesource.com/5300 Reviewed-by: Adam Langley <agl@google.com>

diff --git a/include/openssl/aes.h b/include/openssl/aes.h
index 84cde41..ed060ff 100644
--- a/include/openssl/aes.h
+++ b/include/openssl/aes.h

@@ -124,7 +124,7 @@
                                     const AES_KEY *key, uint8_t *ivec,
                                     const int enc);
 
-/* AES_ofb128_encrypt encrypts (or decrypts, it's the same in CTR mode) |len|
+/* AES_ofb128_encrypt encrypts (or decrypts, it's the same in OFB mode) |len|
  * bytes from |in| to |out|. The |num| parameter must be set to zero on the
  * first call. */
 OPENSSL_EXPORT void AES_ofb128_encrypt(const uint8_t *in, uint8_t *out,