Use string formatter to create source and img_format labels (#1566)
Use string formatter to create source and img_format labels (#1566)

google_images :  use JSON embedded in HTML (engine expected pure JSON)
dalf/searx,asciimoo/searx,dalf/searx,dalf/searx,asciimoo/searx,jcherqui/searx,asciimoo/searx,asciimoo/searx,jcherqui/searx,jcherqui/searx,dalf/searx,jcherqui/searx