Install lsof

Change-Id: I8cf00807d6adf86b60b4c0ba3ea1040851866224
diff --git a/debian-8/scripts/base.sh b/debian-8/scripts/base.sh
index ebb2c95..504e2e1 100644
--- a/debian-8/scripts/base.sh
+++ b/debian-8/scripts/base.sh
@@ -19,7 +19,7 @@
 apt-get autoremove --purge
 
 # Useful tools
-apt-get -y install curl wget tmux vim-nox byobu iputils-ping traceroute htop tree
+apt-get -y install curl wget tmux vim-nox byobu iputils-ping traceroute htop tree lsof
 
 # Tmux fixes
 cat << 'EOF' >> /etc/tmux.conf