Fix test that incorrectly had '-0h00m00s 0d00m00s' and similar
Fix test that incorrectly had '-0h00m00s 0d00m00s' and similar

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