Pass exception into string formatting

Fixing a small typo in a error message

Change-Id: Ia3fcab0f470166108cc24589f0040e14727710df
Remove ifup from the nova-bm-dnsmasq.service

After d9a4ea36e10750f09c4bdd667f060d10aaa7c69b the init-quantum script
is no longer creating network configure files causing the ifup command
on the nova-bm-dnsmasq.service to fail

Change-Id: I8d650fdffac8b12ce0de9ae4852ceb41967656f3
Merge "Remove ifup from the nova-bm-dnsmasq.service"
Merge "Pass exception into string formatting"