Changed doctest to reflect new return value for add_ones.
Changed doctest to reflect new return value for add_ones.



ManuSchmi88/landlab,csherwood-usgs/landlab,cmshobe/landlab,SiccarPoint/landlab,SiccarPoint/landlab,amandersillinois/landlab,laijingtao/landlab,landlab/landlab,cmshobe/landlab,csherwood-usgs/landlab,ManuSchmi88/landlab,decvalts/landlab,ManuSchmi88/landlab,RondaStrauch/landlab,RondaStrauch/landlab,decvalts/landlab,amandersillinois/landlab,Carralex/landlab,RondaStrauch/landlab,Carralex/landlab,laijingtao/landlab,cmshobe/landlab,Carralex/landlab,landlab/landlab,landlab/landlab