Merge pull request puppetlabs#2 from mhaskel/rhel7

Fix validate_db_connection_spec.

Author: Ashley Penney

spec/acceptance/validate_db_connection_spec.rb

@@ -44,7 +44,7 @@ class { 'postgresql::server':
 
   it 'should keep retrying if database is down' do
     if fact('operatingsystem') == 'RedHat' && fact('operatingsystemrelease') =~ /^7/
-      shell('nohup bash -c "sleep 10; for i in /usr/lib/systemd/system/postgres*; do systemctl start `basename $i`; done" > /dev/null 2>&1 &')
+      shell('nohup bash -c "sleep 10; systemctl start `basename /usr/lib/systemd/system/postgres*`" > /dev/null 2>&1 &')
     else
       shell('nohup bash -c "sleep 10; /etc/init.d/postgresql* start" > /dev/null 2>&1 &')
     end