Add handy reboot and poweroff aliases

dotfiles/bash/main.bashrc

 alias xii='xclip -selection clipboard -i'
 alias xo='xclip -o'
 alias xoo='xclip -selection clipboard -o'
+alias reboot="echo -n . ; sync ; echo -n . ; sync ; echo -n . ; systemctl reboot"
+alias poweroff="echo -n . ; sync ; echo -n . ; sync ; echo -n . ; systemctl poweroff"
 
 RV_TMP="/tmp/bash-rv"
 mkdir -p "$RV_TMP"