This file is indexed.

/usr/bin/arduino is in arduino 2:1.0.5+dfsg2-4.1.

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/bash

if [[ `id -u` -ne 0 ]]; then
#    for group in dialout tty; do
    for group in dialout; do
	if ! groups | grep -q "\b$group\b"; then
	    missing_groups="$missing_groups\n$group"
	fi
    done

    if [[ -n $missing_groups ]] && ! java -jar /usr/share/arduino/arduinopc.jar; then
	pkexec /usr/bin/arduino-add-groups
    fi
fi

 
APPDIR=/usr/share/arduino

cd "$APPDIR"
 
for LIB in \
    java/lib/rt.jar \
    java/lib/tools.jar \
    lib/*.jar \
    ;
do
    CLASSPATH="${CLASSPATH}:${LIB}"
done
export CLASSPATH

LD_LIBRARY_PATH="/usr/lib/jni${LD_LIBRARY_PATH:+:$LD_LIBRARY_PATH}"
export LD_LIBRARY_PATH

export PATH="${APPDIR}/java/bin:${PATH}"

java -Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel processing.app.Base "$@"