pull request from @JustinLilly addresses this better

Author: kerrizor

sites/installfest/ubuntu.step

@@ -9,7 +9,7 @@ Open a terminal (Applications > Accessories > Terminal).  You may want to right-
 
   console "sudo apt-get install build-essential bison openssl libreadline6 libreadline6-dev curl zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-0 libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev ncurses-dev"
 
-  console "sudo apt-get install git-core"
+  console "sudo apt-get install git"
 end
 
 step "install RVM" do