AppVeyor: be more verbose about deleting/copying custom node.exe
AppVeyor: be more verbose about deleting/copying custom node.exe

Zhao-Qi/mapbox-studio-classic,mapbox/mapbox-studio-classic,mapbox/mapbox-studio-classic,mapbox/mapbox-studio,Zhao-Qi/mapbox-studio-classic,mapbox/mapbox-studio,mapbox/mapbox-studio,mapbox/mapbox-studio,mapbox/mapbox-studio-classic,Zhao-Qi/mapbox-studio-classic,Zhao-Qi/mapbox-studio-classic,mapbox/mapbox-studio,Zhao-Qi/mapbox-studio-classic,mapbox/mapbox-studio-classic