Merge pull request #2058 from cmurphy/fix-discover_hosts

nova: Ignore errors for discover_hosts

Author: cmurphy

chef/cookbooks/nova/recipes/compute_register_cell.rb

@@ -32,7 +32,6 @@
   user node[:nova][:user]
   group node[:nova][:group]
   code <<-EOH
-    set -e
     tmpfile=$(mktemp /tmp/nova-discover-hosts.XXXXXX.conf)
     chmod 600 $tmpfile
     echo "[api_database]" >> $tmpfile