add missing class in changelog entry
add missing class in changelog entry

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