An initial-entry section in the dbconfig file is used to
describe which fields should be present on initial PR entry; this is
used by tools such as send-pr to determine which fields to include in a
“blank” PR template. An optional require parameter can be
defined to specify a subset of the intial-entry fields which must
be assigned a value upon initial creation of the PR.
The general format for the initial-entry section is
initial-entry {
fields { "fieldname" [ "fieldname" ... ] }
[ require { "fieldname" [ "fieldname" ... ] } ]
}