properly report hangupcause when ast_request() fails for the last (or only) target of a dial operation (issue #5394, different fix)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6735 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_dial.c

@@ -1109,6 +1109,8 @@ static int dial_exec_full(struct ast_channel *chan, void *data, struct ast_flags
 			ast_log(LOG_NOTICE, "Unable to create channel of type '%s' (cause %d - %s)\n", tech, cause, ast_cause2str(cause));
 			HANDLE_CAUSE(cause, chan);
 			cur = rest;
+			if (!cur)
+				chan->hangupcause = cause;
 			continue;
 		}
 		pbx_builtin_setvar_helper(tmp->chan, "DIALEDPEERNUMBER", numsubst);