Fix a couple of minor memory leaks

src/sso/sso.c

@@ -285,6 +285,7 @@ static int sso_ticket_deserialize(sso_ticket_t *t, const char *s, int sz) {
   }
 
   *t = sso_ticket_new(user, service, domain, nonce, session_id, (const char **)groups, expires);
+  free(version);
   return SSO_OK;
 
  fail:
@@ -296,6 +297,8 @@ static int sso_ticket_deserialize(sso_ticket_t *t, const char *s, int sz) {
     free(service);
   if (domain != NULL)
     free(domain);
+  if (nonce != NULL)
+    free(nonce);
   if (session_id != NULL)
     free(session_id);
   if (groups != NULL)