CCM*: Make documentation consistent
diff --git a/include/mbedtls/ccm.h b/include/mbedtls/ccm.h
index 4881db7..5d727e7 100644
--- a/include/mbedtls/ccm.h
+++ b/include/mbedtls/ccm.h
@@ -192,7 +192,7 @@
*
* \param ctx The CCM context to use for decryption.
* \param length The length of the input data in Bytes.
- * \param iv Initialization vector.
+ * \param iv Initialization vector (nonce).
* \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12,
* or 13. The length L of the message length field is
* 15 - \p iv_len.
@@ -227,7 +227,7 @@
*
* \param ctx The CCM context to use for decryption.
* \param length The length of the input data in Bytes.
- * \param iv Initialization vector.
+ * \param iv Initialization vector (nonce).
* \param iv_len The length of the nonce in Bytes: 7, 8, 9, 10, 11, 12,
* or 13. The length L of the message length field is
* 15 - \p iv_len.
@@ -244,8 +244,7 @@
* \warning Passing 0 as \p tag_len means that the message is no
* longer authenticated.
*
- * \return \c 0 on success. This indicates that the message is
- * authentic.
+ * \return \c 0 on success.
* \return #MBEDTLS_ERR_CCM_AUTH_FAILED if the tag does not match.
* \return A cipher-specific error code on calculation failure.
*/