Fix formatting in design-2.0-os-interface
Fix formatting in design-2.0-os-interface

Reviewed-by: imsnah

leshchevds/ganeti,ganeti/ganeti,grnet/snf-ganeti,dimara/ganeti,leshchevds/ganeti,yiannist/ganeti,mbakke/ganeti,yiannist/ganeti,grnet/snf-ganeti,mbakke/ganeti,andir/ganeti,yiannist/ganeti,ganeti/ganeti,ganeti-github-testing/ganeti-test-1,leshchevds/ganeti,onponomarev/ganeti,onponomarev/ganeti,ganeti/ganeti,apyrgio/snf-ganeti,dimara/ganeti,bitemyapp/ganeti,apyrgio/snf-ganeti,andir/ganeti,apyrgio/ganeti,apyrgio/ganeti,mbakke/ganeti,ganeti-github-testing/ganeti-test-1,andir/ganeti,bitemyapp/ganeti