fix extra bracket typo
fix extra bracket typo

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