coverity#707904 Uninitialized scalar field

Change-Id: Ied056d944574534e1900cf6644d1eea868cbeee1
coverity#707905 Uninitialized scalar field

Change-Id: Icb00858146d65963a1c3144a61aa467d7da461e4
Do not display heading in the IDL short description
(cherry picked from commit 8242e5eed90db471b5dbe37a6bf03e96988ec26d)