L2SS-409: fix shellcheck start-DS.sh

bin/start-DS.sh

+#!/bin/bash
 function help()
 {
     why="${1}"
@@ -29,14 +30,14 @@ esac
 # ATTENTION
 # This is assuming that the device server's Python file exists
 # on the Docker's host in the user's ${HOME} directory.
-runThis=$(basename ${deviceServer})
+runThis=$(basename "${deviceServer}")
 runThis=${runThis//.sh/.py}
-if [ -f ${runThis} ]; then
+if [ -f "${runThis}" ]; then
     myDir=${PWD}
 else
-    myDir=${PWD}/$(dirname ${deviceServer})
+    myDir=${PWD}/$(dirname "${deviceServer}")
 fi
 deviceServerPath=${myDir/${HOME}/\/hosthome}
 
 # Tango log lines start with a UNIX timestamp. Replace them with the UTC time.
-docker exec -it itango python3 ${deviceServerPath}/${runThis} ${instance} ${@} | perl -ne 'use Time::Piece; s/^([0-9]+)/gmtime($1)->strftime("%F %T")/e; print;'
+docker exec -it itango python3 "${deviceServerPath}"/"${runThis}" "${instance}" "${@}" | perl -ne 'use Time::Piece; s/^([0-9]+)/gmtime($1)->strftime("%F %T")/e; print;'