* Fix bugs that caused some doctests to fail.
* Fix bugs that caused some doctests to fail.



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