fixed docstring tests: reduce # of significant digits
fixed docstring tests: reduce # of significant digits

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