mv: fix double-free of fullname

The new fullname variable is marked as _cleanup_free but the
pointer is only assigned in account->set_fullname(), not duplicated.

blob_free() frees the account which in turn frees account->fullname,
causing a double-free when the _cleanup_free function is called.

Signed-off-by: Bob Copeland <copeland@lastpass.com>

cmd-mv.c

@@ -61,7 +61,7 @@ int cmd_mv(int argc, char **argv)
 	int option_index;
 	char *name;
 	char *folder;
-	_cleanup_free_ char *new_fullname = NULL;
+	char *new_fullname = NULL;
 	struct account *account;
 	struct share *old_share;