Fixing an error message.

PiperOrigin-RevId: 542055672

quiche/blind_sign_auth/anonymous_tokens/cpp/crypto/crypto_utils.cc

diff --git a/quiche/blind_sign_auth/anonymous_tokens/cpp/crypto/crypto_utils.cc b/quiche/blind_sign_auth/anonymous_tokens/cpp/crypto/crypto_utils.cc
index 8f6834a..7f1b85e 100644
--- a/quiche/blind_sign_auth/anonymous_tokens/cpp/crypto/crypto_utils.cc
+++ b/quiche/blind_sign_auth/anonymous_tokens/cpp/crypto/crypto_utils.cc
@@ -613,7 +613,7 @@
           reinterpret_cast<const uint8_t*>(rsa_public_key_str.data()),
           rsa_public_key_str.size())) {
     return absl::InvalidArgumentError(
-        "Failed to generate encoded self-signed certificate");
+        "Failed to set the crypto byte builder object.");
   }
   // Finish creating the DER-encoding of RsaSsaPssPublicKey.
   uint8_t* rsa_ssa_pss_public_key_der;