Add debug

Author: pirj

script/update_rubygems_and_install_bundler

@@ -6,7 +6,9 @@ set -e
 source script/functions.sh
 
 if is_ruby_23_plus; then
+  echo 'gem install bundler'
   gem install bundler --conservative --no-document
+  echo 'gem update --system'
   gem update --system
 else
   echo "Warning installing older versions of Rubygems / Bundler"