Do not log user data content
Do not log user data content

It may contain sensitive data.

Change-Id: I4b6d408eecdc0ad595b9500c5c09da5660a67d18

openstack/cloudbase-init,stackforge/cloudbase-init,chialiang-8/cloudbase-init,alexpilotti/cloudbase-init,stefan-caraiman/cloudbase-init,cmin764/cloudbase-init,ader1990/cloudbase-init