Fix typos & Co
diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 09aaf37..3fbb25e 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -2037,8 +2037,8 @@
  * \param ssl      SSL context
  *
  * \return         Current maximum record expansion in bytes, or
- *                 POLARSSL_ERR_FEATURE_UNAVAILABLE if compression is enabled,
- *                 which makes expansion much less predictable
+ *                 POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE if compression is
+ *                 enabled, which makes expansion much less predictable
  */
 int ssl_get_record_expansion( const ssl_context *ssl );