Fix malformed ENV VARs in Cron

Bug 1157830 - https://bugzilla.redhat.com/show_bug.cgi?id=1157830
Specifically require AsciiDoctor 0.1.4 to solve template error
Merge pull request #5916 from nhr/m4_docs_gen_fix

Merged by openshift-bot
Merge pull request #5915 from VojtechVitek/bug_1157830

Merged by openshift-bot