Changed default kwds to test function.
Changed default kwds to test function.

Changed the defaults for the keywords to the test method of LandlabTester so
that the tests run properly.

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