Fix Angle.to_string to get it to output string arrays
Fix Angle.to_string to get it to output string arrays

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