/usr/bin/traceconvert is in libtrace-tools 3.0.21-1ubuntu2.
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
if [ $# -lt 2 ]; then
	echo usage: $0 inputuri outputuri
	exit 1
fi
exec tracesplit -z 1 -Z gzip "$1" "$2"
 |