Correctly identify bad header lines.
Correctly identify bad header lines.

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