Limit ChangeLog entry to 80 characters

Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
diff --git a/ChangeLog.d/fix-possible-false-success-in-mbedtls_cipher_check_tag.txt b/ChangeLog.d/fix-possible-false-success-in-mbedtls_cipher_check_tag.txt
index 0149243..1f9e0aa 100644
--- a/ChangeLog.d/fix-possible-false-success-in-mbedtls_cipher_check_tag.txt
+++ b/ChangeLog.d/fix-possible-false-success-in-mbedtls_cipher_check_tag.txt
@@ -1,4 +1,5 @@
 Changes
-   * Calling AEAD tag-specific functions for non-AEAD algorithms (which should not
-     be done - they are documented for use only by AES-GCM and ChaCha20+Poly1305)
-     now returns MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE instead of success (0).
+   * Calling AEAD tag-specific functions for non-AEAD algorithms (which
+     should not be done - they are documented for use only by AES-GCM and
+     ChaCha20+Poly1305) now returns MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE
+     instead of success (0).