totempg.c: remove one const-related warning

git-svn-id: http://svn.fedorahosted.org/svn/corosync/trunk@1923 fd59a12c-fef9-0310-b244-a6a79926bd2f

exec/totempg.c

@@ -1101,7 +1101,7 @@ error_exit:
 
 int totempg_groups_mcast_joined (
 	hdb_handle_t handle,
-	struct iovec *iovec,
+	const struct iovec *iovec,
 	int iov_len,
 	int guarantee)
 {

include/corosync/totem/totempg.h

@@ -106,7 +106,7 @@ extern int totempg_groups_leave (
 
 extern int totempg_groups_mcast_joined (
 	hdb_handle_t handle,
-	struct iovec *iovec,
+	const struct iovec *iovec,
 	int iov_len,
 	int guarantee);