Fix the repo URL for RHEL based systems.
Fix the repo URL for RHEL based systems.

Signed-off-by: Danny Roberts <ab83461dcbd84ff2d7abb8d53516b307b418fad8@skybettingandgaming.com>

opscode-cookbooks/jenkins,autoclone/jenkins-cookbook,chef-cookbooks/jenkins,samdunne/jenkins,autoclone/jenkins-cookbook,juliandunn/jenkins,chef-cookbooks/jenkins,juliandunn/jenkins,Dispader/jenkins,dshvedchenko/jenkins,autoclone/jenkins-cookbook,b-dean/jenkins,opscode-cookbooks/jenkins,samdunne/jenkins,b-dean/jenkins,chef-cookbooks/jenkins,b-dean/jenkins,Dispader/jenkins,dshvedchenko/jenkins,samdunne/jenkins,dshvedchenko/jenkins,gshively11/jenkins,gshively11/jenkins,gshively11/jenkins,juliandunn/jenkins,daften/cookbook-jenkins,daften/cookbook-jenkins,daften/cookbook-jenkins,Dispader/jenkins,opscode-cookbooks/jenkins