/usr/share/ltsp/scripts/start-stop-daemon is in ltsp-server 5.4.2-6+deb7u1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | #!/bin/sh
#
# LTSP Wrapper to avoid running daemons while performing maintainence.
#
if [ "$LTSP_HANDLE_DAEMONS" != "false" ]; then
/sbin/start-stop-daemon.real "$@"
fi
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