[syslinux] Can't get initrdfile= or initrd+= to work

[Andrew Stuart]

Of course I immediately got it to work the moment after mailing this list.

Apologies for the noise.

For reference, this worked:

SERIAL 0
TIMEOUT 1
PROMPT 1
DEFAULT tinycore
LABEL tinycore
    COM32 linux.c32 vmlinuz64 tce=/opt/tce noswap modules=ext4 console=tty0 console=ttyS0
    INITRD corepure64.gz,rootfs_overlay_initramfs.gz,bootrino_initramfs.gz
    APPEND initrd+=nginx_initramfs.gz