add "show-file-changes" alias to .gitconfig
add "show-file-changes" alias to .gitconfig

That alias shows all log entries for the given file. This includes the
diff and statistics per change. It also works for files that have been
renamed in the past.

graste/dotfiles-etc,graste/dotfiles-etc,graste/dotfiles-etc,graste/dotfiles-etc,graste/dotfiles-etc