Fix matplotlib deprecation warning for legend loc
Fix matplotlib deprecation warning for legend loc

naojsoft/ginga,pllim/ginga,eteq/ginga,ejeschke/ginga,ejeschke/ginga,stscieisenhamer/ginga,rajul/ginga,rajul/ginga,Cadair/ginga,Cadair/ginga,rupak0577/ginga,Cadair/ginga,ejeschke/ginga,pllim/ginga,pllim/ginga,eteq/ginga,eteq/ginga,rupak0577/ginga,stscieisenhamer/ginga,rajul/ginga,naojsoft/ginga,stscieisenhamer/ginga,rupak0577/ginga,naojsoft/ginga