Update sparse.csgraph.laplacian docstring
Update sparse.csgraph.laplacian docstring

The return type is incorrectly documented when the input is sparse,
making it seem as though the function cannot work efficiently with
sparse inputs, when in fact it can.

pyramania/scipy,kleskjr/scipy,gertingold/scipy,kleskjr/scipy,haudren/scipy,haudren/scipy,mikebenfield/scipy,pschella/scipy,arokem/scipy,nonhermitian/scipy,woodscn/scipy,pschella/scipy,surhudm/scipy,matthew-brett/scipy,aeklant/scipy,behzadnouri/scipy,niknow/scipy,Stefan-Endres/scipy,Eric89GXL/scipy,Stefan-Endres/scipy,ilayn/scipy,WarrenWeckesser/scipy,perimosocordiae/scipy,befelix/scipy,zerothi/scipy,chatcannon/scipy,nonhermitian/scipy,befelix/scipy,WarrenWeckesser/scipy,mikebenfield/scipy,zerothi/scipy,matthewalbani/scipy,argriffing/scipy,sriki18/scipy,apbard/scipy,nmayorov/scipy,woodscn/scipy,aarchiba/scipy,anntzer/scipy,pyramania/scipy,woodscn/scipy,WarrenWeckesser/scipy,Stefan-Endres/scipy,gdooper/scipy,haudren/scipy,mikebenfield/scipy,grlee77/scipy,Stefan-Endres/scipy,Eric89GXL/scipy,sriki18/scipy,andyfaff/scipy,Eric89GXL/scipy,mdhaber/scipy,anielsen001/scipy,endolith/scipy,Newman101/scipy,lhilt/scipy,jamestwebber/scipy,surhudm/scipy,nmayorov/scipy,nonhermitian/scipy,aarchiba/scipy,ilayn/scipy,bkendzior/scipy,jjhelmus/scipy,e-q/scipy,matthew-brett/scipy,jamestwebber/scipy,matthewalbani/scipy,jor-/scipy,anntzer/scipy,larsmans/scipy,surhudm/scipy,gdooper/scipy,mikebenfield/scipy,Gillu13/scipy,woodscn/scipy,ilayn/scipy,pizzathief/scipy,dominicelse/scipy,aeklant/scipy,argriffing/scipy,vigna/scipy,gfyoung/scipy,perimosocordiae/scipy,Newman101/scipy,pizzathief/scipy,anntzer/scipy,pizzathief/scipy,Stefan-Endres/scipy,zerothi/scipy,behzadnouri/scipy,gertingold/scipy,tylerjereddy/scipy,chatcannon/scipy,arokem/scipy,ilayn/scipy,mdhaber/scipy,mdhaber/scipy,aarchiba/scipy,apbard/scipy,lhilt/scipy,person142/scipy,surhudm/scipy,endolith/scipy,apbard/scipy,sriki18/scipy,niknow/scipy,nonhermitian/scipy,rgommers/scipy,vigna/scipy,larsmans/scipy,rgommers/scipy,endolith/scipy,matthewalbani/scipy,tylerjereddy/scipy,maniteja123/scipy,perimosocordiae/scipy,tylerjereddy/scipy,surhudm/scipy,jjhelmus/scipy,Eric89GXL/scipy,mdhaber/scipy,scipy/scipy,kleskjr/scipy,anielsen001/scipy,aeklant/scipy,jor-/scipy,person142/scipy,arokem/scipy,dominicelse/scipy,gdooper/scipy,maniteja123/scipy,jjhelmus/scipy,befelix/scipy,WarrenWeckesser/scipy,jor-/scipy,scipy/scipy,sriki18/scipy,argriffing/scipy,kalvdans/scipy,andyfaff/scipy,person142/scipy,pschella/scipy,grlee77/scipy,jakevdp/scipy,perimosocordiae/scipy,larsmans/scipy,gfyoung/scipy,bkendzior/scipy,dominicelse/scipy,andyfaff/scipy,josephcslater/scipy,pschella/scipy,josephcslater/scipy,pbrod/scipy,jor-/scipy,jakevdp/scipy,Newman101/scipy,kalvdans/scipy,behzadnouri/scipy,nmayorov/scipy,Gillu13/scipy,pschella/scipy,person142/scipy,aarchiba/scipy,kleskjr/scipy,apbard/scipy,kalvdans/scipy,sriki18/scipy,Eric89GXL/scipy,perimosocordiae/scipy,bkendzior/scipy,gfyoung/scipy,mdhaber/scipy,dominicelse/scipy,endolith/scipy,pbrod/scipy,Eric89GXL/scipy,gdooper/scipy,behzadnouri/scipy,pbrod/scipy,niknow/scipy,rgommers/scipy,tylerjereddy/scipy,larsmans/scipy,Newman101/scipy,rgommers/scipy,anielsen001/scipy,surhudm/scipy,lhilt/scipy,pbrod/scipy,argriffing/scipy,haudren/scipy,anielsen001/scipy,anntzer/scipy,scipy/scipy,anielsen001/scipy,gertingold/scipy,aeklant/scipy,rgommers/scipy,befelix/scipy,grlee77/scipy,jamestwebber/scipy,arokem/scipy,jamestwebber/scipy,kalvdans/scipy,andyfaff/scipy,anntzer/scipy,maniteja123/scipy,josephcslater/scipy,pizzathief/scipy,scipy/scipy,person142/scipy,Newman101/scipy,sriki18/scipy,argriffing/scipy,argriffing/scipy,behzadnouri/scipy,Stefan-Endres/scipy,behzadnouri/scipy,zerothi/scipy,scipy/scipy,nonhermitian/scipy,apbard/scipy,vigna/scipy,chatcannon/scipy,andyfaff/scipy,matthew-brett/scipy,nmayorov/scipy,WarrenWeckesser/scipy,arokem/scipy,mdhaber/scipy,pbrod/scipy,maniteja123/scipy,lhilt/scipy,anntzer/scipy,jakevdp/scipy,matthew-brett/scipy,josephcslater/scipy,Gillu13/scipy,maniteja123/scipy,vigna/scipy,kleskjr/scipy,pyramania/scipy,gertingold/scipy,niknow/scipy,e-q/scipy,gdooper/scipy,pizzathief/scipy,jjhelmus/scipy,vigna/scipy,aarchiba/scipy,Gillu13/scipy,zerothi/scipy,kalvdans/scipy,andyfaff/scipy,jakevdp/scipy,WarrenWeckesser/scipy,maniteja123/scipy,endolith/scipy,zerothi/scipy,grlee77/scipy,ilayn/scipy,larsmans/scipy,pyramania/scipy,larsmans/scipy,gertingold/scipy,e-q/scipy,endolith/scipy,chatcannon/scipy,Gillu13/scipy,pyramania/scipy,lhilt/scipy,befelix/scipy,pbrod/scipy,niknow/scipy,gfyoung/scipy,mikebenfield/scipy,e-q/scipy,kleskjr/scipy,Newman101/scipy,aeklant/scipy,grlee77/scipy,jamestwebber/scipy,josephcslater/scipy,Gillu13/scipy,anielsen001/scipy,haudren/scipy,gfyoung/scipy,nmayorov/scipy,bkendzior/scipy,bkendzior/scipy,matthewalbani/scipy,woodscn/scipy,woodscn/scipy,jakevdp/scipy,dominicelse/scipy,chatcannon/scipy,chatcannon/scipy,scipy/scipy,perimosocordiae/scipy,ilayn/scipy,matthewalbani/scipy,e-q/scipy,niknow/scipy,tylerjereddy/scipy,jjhelmus/scipy,jor-/scipy,matthew-brett/scipy,haudren/scipy