[install] omit chown on plist created by the current user (#520)

installTorrServerMac.sh

@@ -179,7 +179,6 @@ EOF
     sysPath="${HOME}/Library/LaunchAgents"
     [[ ! -d "$sysPath" ]] && mkdir -p ${sysPath}
     cp "$dirInstall/$serviceName.plist" $sysPath
-    sudo chown $user "$sysPath/$serviceName.plist"
     chmod 0644 "$sysPath/$serviceName.plist"
     launchctl load -w "$sysPath/$serviceName.plist" 1>/dev/null 2>&1
   else
@@ -232,4 +231,4 @@ while true; do
 done
 echo " Have Fun!"
 echo ""
-sleep 5
+sleep 5