Default result of STAT should be "0" not "".

Reported via the -users mailing list, fixed by me.


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@89631 65c4cc65-6c06-0410-ace0-fbb531ad65f3

funcs/func_env.c

@@ -73,7 +73,7 @@ static int stat_read(struct ast_channel *chan, char *cmd, char *data,
 	char *action;
 	struct stat s;
 
-	*buf = '\0';
+	ast_copy_string(buf, "0", len);
 
 	action = strsep(&data, "|");
 	if (stat(data, &s)) {