add warning to the top of erfa.pyx
add warning to the top of erfa.pyx

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