Fix fails on ubuntu due to missing /etc/motd

Some systems that we are testing on may not have /etc/motd. So we need to create a file that we can control and use that for the further tests.
Merge pull request #6165 from risaacson/fix_fetch_integration

Fix fails on ubuntu due to missing /etc/motd

Tests functional on centos6, ubuntu1204 and ubuntu1310 now.