pastebin: Fix visibility detection
pastebin: Fix visibility detection

Private has been renamed to Unlisted, and Private is something else.

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