This module provides support for commands syslinux_source,
syslinux_configfile, extract_syslinux_entries_source,
and extract_syslinux_entries_configfile in GRUB. These commands
can be used to parse and display GRUB menu entries based on a Syslinux based
configuration (used for SYSLINUX, ISOLINUX, and PXELINUX). It can also
be used to execute the Syslinux loader from GRUB.