[syslinux] menu broken if default 'append' option specified

[Michael Tokarev]

Hello.

This is my first post here. ;)

I noticed that if the default 'append' option is
specified in the config file, menu and vesamenu
wont boot the system.  Instead of offering a menu,
the screen goes blank; after hitting any key on the
keyboard, empty menu frame gets displayed with no
boot entry list inside.

It gets fixed by removing default 'append' entry
(the one before any 'label').

Default syslinux (without menu) works correctly with
this configuration.

Maybe this is the reason for
http://syslinux.zytor.com/archives/2009-June/012680.html --
"[syslinux] pxelinux.bin (3.80) hanging at the beginning
of menu.c32 TFTP transfer" but might be unrelated.

Tested with syslinux-3.82 tarball.  It's my first
expirence with syslinux :)

Thanks.

/mjt