Fix incompatible pointer type warning
Fix incompatible pointer type warning

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