Change Changelog entry to a maximum of 80 charactors

Signed-off-by: Ben Taylor <ben.taylor@linaro.org>
diff --git a/ChangeLog.d/9874.txt b/ChangeLog.d/9874.txt
index 8f264ec..21fe22e 100644
--- a/ChangeLog.d/9874.txt
+++ b/ChangeLog.d/9874.txt
@@ -1,5 +1,5 @@
 API changes
    * Align the mbedtls_ssl_ticket_setup() function with the PSA Crypto API.
-     Instead of taking a mbedtls_cipher_type_t as an argument, this function now takes 3
-     new arguments: a PSA algorithm, key type and key size, to specify the AEAD for ticket
-     protection.
+     Instead of taking a mbedtls_cipher_type_t as an argument, this function 
+     now takes 3 new arguments: a PSA algorithm, key type and key size, to 
+     specify the AEAD for ticket protection.