This file is indexed.

/lib/live/boot/0010-debug is in live-boot 1:20151213.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

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#!/bin/sh

#set -e

Debug ()
{
	for _PARAMETER in ${LIVE_BOOT_CMDLINE}
	do
		case "${_PARAMETER}" in
			live-boot.debug|debug)
				LIVE_BOOT_DEBUG="true"
				;;
		esac
	done

	case "${LIVE_BOOT_DEBUG}" in
		true)
			;;

		*)
			return 0
			;;
	esac

	# Write the trace output
	set -x
}