Merge pull request #3063 from edx/jibsheet/better-task-message

Seeing fail: in ansible output is confusing to folks

playbooks/edx-east/set_hostname.yml

@@ -6,7 +6,8 @@
   sudo: True
   gather_facts: False
   tasks:
-    - fail: msg="you must pass a hostname_fqdn var into this play"
+    - name: "Ensure we have a hostname"
+      fail: msg="you must pass a hostname_fqdn var into this play"
       when: hostname_fqdn is not defined
     - name: Set hostname
       hostname: name={{ hostname_fqdn.split('.')[0] }}