tiny refine: capitalize mod_name with string capitalize function
tiny refine: capitalize mod_name with string capitalize function

string capitalize can return a copy of the string S with only its first
character capitalized.

Change-Id: If76b63e0b6c1c9ab957afdf66d3e7c76367afb2c

huntxu/neutron,mahak/neutron,openstack/neutron,mahak/neutron,noironetworks/neutron,noironetworks/neutron,mahak/neutron,huntxu/neutron,eayunstack/neutron,openstack/neutron,eayunstack/neutron,openstack/neutron