Makefile: make install_files handler more verbose and robust
Makefile: make install_files handler more verbose and robust

blueyed/dotfiles,blueyed/dotfiles,scorpiovn/dotfiles,blueyed/dotfiles,scorpiovn/dotfiles,blueyed/dotfiles,scorpiovn/dotfiles,scorpiovn/dotfiles,scorpiovn/dotfiles,blueyed/dotfiles