Fix sextractor reader test
Fix sextractor reader test

MSeifert04/astropy,larrybradley/astropy,bsipocz/astropy,larrybradley/astropy,stargaser/astropy,AustereCuriosity/astropy,saimn/astropy,mhvk/astropy,StuartLittlefair/astropy,DougBurke/astropy,kelle/astropy,MSeifert04/astropy,pllim/astropy,AustereCuriosity/astropy,kelle/astropy,aleksandr-bakanov/astropy,funbaker/astropy,joergdietrich/astropy,larrybradley/astropy,pllim/astropy,aleksandr-bakanov/astropy,joergdietrich/astropy,MSeifert04/astropy,stargaser/astropy,funbaker/astropy,astropy/astropy,bsipocz/astropy,kelle/astropy,StuartLittlefair/astropy,pllim/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,stargaser/astropy,bsipocz/astropy,tbabej/astropy,DougBurke/astropy,tbabej/astropy,StuartLittlefair/astropy,mhvk/astropy,AustereCuriosity/astropy,mhvk/astropy,lpsinger/astropy,saimn/astropy,lpsinger/astropy,funbaker/astropy,dhomeier/astropy,dhomeier/astropy,tbabej/astropy,DougBurke/astropy,MSeifert04/astropy,aleksandr-bakanov/astropy,saimn/astropy,joergdietrich/astropy,astropy/astropy,larrybradley/astropy,dhomeier/astropy,AustereCuriosity/astropy,lpsinger/astropy,tbabej/astropy,saimn/astropy,astropy/astropy,lpsinger/astropy,astropy/astropy,kelle/astropy,funbaker/astropy,tbabej/astropy,dhomeier/astropy,stargaser/astropy,DougBurke/astropy,larrybradley/astropy,pllim/astropy,saimn/astropy,dhomeier/astropy,mhvk/astropy,mhvk/astropy,bsipocz/astropy,joergdietrich/astropy,aleksandr-bakanov/astropy,joergdietrich/astropy,astropy/astropy,pllim/astropy,lpsinger/astropy,kelle/astropy,AustereCuriosity/astropy