Silence Matplotlib deprecation warnings after pytest run
Silence Matplotlib deprecation warnings after pytest run

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