viewer/setup_viewer.sh no longer checks plotting tool and analysis tool

Running

cd localdb-tools/viewer
./setup_viewer.sh -p 27017

results in

...
[LDB] Check plotting tool and analysis tool...
[LDB] Set ROOT installed directroy. (Enter path/to/dir or 'skip')
> /opt/root

make: *** No targets specified and no makefile found.  Stop
make: *** No targets specified and no makefile found.  Stop.
...

This is due to 6bdac0ee.