document that ast_cdr_answer is happy with a NULL argument

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@24463 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 1 insertions, 0 deletions

diff --git a/include/asterisk/cdr.h b/include/asterisk/cdr.h
index b08f0fd7b..33413bc34 100644
--- a/include/asterisk/cdr.h
+++ b/include/asterisk/cdr.h
@@ -166,6 +166,7 @@ void ast_cdr_start(struct ast_cdr *cdr);
 /*!
  * \param cdr the cdr you wish to associate with the call
  * Starts all CDR stuff necessary for doing CDR when answering a call
+ * NULL argument is just fine.
  */
 void ast_cdr_answer(struct ast_cdr *cdr);