Duplicated because I believe this happens in 1.2 as well. 

+++ This bug was initially created as a clone of Bug #1040647 +++

Description of problem:
test_broker_certificate isn't quite reliable.

How reproducible:
Note root cause discussion in https://bugzilla.redhat.com/show_bug.cgi?id=1047778

Steps to Reproduce:
1. Use openshift.sh to create separate OSE 1.2 broker (not all-in-1)
2. oo-diagnostics test_broker_certificate

Results:
FAIL: rescue in block in run_tests
error running test_broker_certificate: #<NoMethodError: undefined method `scan' for nil:NilClass>

Additional info:
The problem at least in this case was that this line returns nil:

  apacheconfig = `httpd -S 2> /dev/null`.slice(/^\*:443.*\n[[:space:]][^\n]*\n[^[:space:]]/m)

It's expecting httpd -S to return at least one line after the :443 match with a space and something else on it. In my case at least, it doesn't:

# httpd -S 2> /dev/null
VirtualHost configuration:
wildcard NameVirtualHosts and _default_ servers:
*:80                   broker.hosts.ose20.example.com (/etc/httpd/conf.d/000002_openshift_origin_broker_proxy.conf:14)
*:443                  broker.hosts.ose20.example.com (/etc/httpd/conf.d/000002_openshift_origin_broker_proxy.conf:25)


Should be able to just cherry-pick the 2.0 fix.