This file is indexed.

/usr/bin/esdcompat is in pulseaudio-esound-compat 1:8.0-0ubuntu3.

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

# This file is part of PulseAudio.
#
# PulseAudio is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# PulseAudio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.

VERSION_STRING="pulseaudio esd wrapper 8.0"

fail() {
    echo "ERROR: $1"
    exit 1
}

ARGS=" --log-target=syslog"

while [ "$#" -gt "0" ]; do

    case "$1" in
        "")
            ;;

        -v|--version)
            echo "$VERSION_STRING"
            exit 0
            ;;

        -h|--help)
            cat <<EOF
$VERSION_STRING

Usage: $0 [options]

  -v --version  print version information
  -h --help     show this help

Ignored directives:

  -tcp          use tcp/ip sockets in addition to unix domain
  -promiscuous  don't require authentication
  -d DEVICE     force esd to use sound device DEVICE
  -b            run server in 8 bit sound mode
  -r RATE       run server at sample rate of RATE
  -as SECS      free audio device after SECS of inactivity
  -unix         use unix domain sockets instead of tcp/ip
  -public       make tcp/ip access public (other than localhost)
  -terminate    terminate esd daemone after last client exits
  -nobeeps      disable startup beeps
  -trust        start esd even if use of /tmp/.esd can be insecure
  -port PORT    listen for connections at PORT (only for tcp/ip)
  -bind ADDRESS binds to ADDRESS (only for tcp/ip)
EOF
            exit 0
            ;;

        -spawnpid)
            shift
            ARGS="$ARGS '-Lmodule-esound-compat-spawnpid pid=$1'"
            ;;

        -spawnfd)
            shift
            ARGS="$ARGS '-Lmodule-esound-compat-spawnfd fd=$1'"
            ;;
        
        -unix|-b|-public|-terminate|-nobeeps|-trust|-tcp|-promiscuous)  
            # Ignore these commands
            ;; 

        -d|-r|-as|-port|-bind)
            # Ignore these commands and their arguments
            shift

            ;;

        *)
            fail "Unknown command: $1"
            ;;
    esac

    shift
done

eval "exec '/usr/bin/pulseaudio'$ARGS"