URLError has different message on Windows
URLError has different message on Windows

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