Minor wording fix
Minor wording fix

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