Simplify check in read_table_fits
Simplify check in read_table_fits

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