Cleaned up docstrings.
Cleaned up docstrings.

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