look for places calling the 1-argument vector fill constructor and then
immediately called push_back, which is generally a sign that its
leaving empty slots.

Change-Id: I34e69b8d09cc48c0d409499faaf192b9f86bc517
Reviewed-on: https://gerrit.libreoffice.org/17525Reviewed-by: Björn Michaelsen <bjoern.michaelsen@canonical.com>
Tested-by: Björn Michaelsen <bjoern.michaelsen@canonical.com>