Fix defaults for behavior in warning/exception-handling code
Fix defaults for behavior in warning/exception-handling code

pllim/astropy,saimn/astropy,StuartLittlefair/astropy,lpsinger/astropy,mhvk/astropy,mhvk/astropy,MSeifert04/astropy,StuartLittlefair/astropy,MSeifert04/astropy,stargaser/astropy,saimn/astropy,stargaser/astropy,aleksandr-bakanov/astropy,StuartLittlefair/astropy,pllim/astropy,mhvk/astropy,pllim/astropy,lpsinger/astropy,saimn/astropy,bsipocz/astropy,aleksandr-bakanov/astropy,pllim/astropy,astropy/astropy,bsipocz/astropy,lpsinger/astropy,saimn/astropy,bsipocz/astropy,aleksandr-bakanov/astropy,astropy/astropy,larrybradley/astropy,dhomeier/astropy,mhvk/astropy,larrybradley/astropy,aleksandr-bakanov/astropy,mhvk/astropy,larrybradley/astropy,stargaser/astropy,pllim/astropy,astropy/astropy,stargaser/astropy,lpsinger/astropy,larrybradley/astropy,MSeifert04/astropy,bsipocz/astropy,StuartLittlefair/astropy,dhomeier/astropy,StuartLittlefair/astropy,dhomeier/astropy,astropy/astropy,MSeifert04/astropy,astropy/astropy,larrybradley/astropy,dhomeier/astropy,saimn/astropy,lpsinger/astropy,dhomeier/astropy