fix crash if stream index is not found (and fix coding style)
fix crash if stream index is not found (and fix coding style)

willprice/weboob,yannrouillard/weboob,sputnick-dev/weboob,willprice/weboob,Konubinix/weboob,Konubinix/weboob,Konubinix/weboob,laurent-george/weboob,nojhan/weboob-devel,RouxRC/weboob,nojhan/weboob-devel,sputnick-dev/weboob,RouxRC/weboob,frankrousseau/weboob,RouxRC/weboob,Boussadia/weboob,laurent-george/weboob,nojhan/weboob-devel,frankrousseau/weboob,willprice/weboob,Boussadia/weboob,Boussadia/weboob,sputnick-dev/weboob,frankrousseau/weboob,Boussadia/weboob,yannrouillard/weboob,laurent-george/weboob,yannrouillard/weboob