[OE-core] First run postinst broken

[Andreas Müller]

Hi,

on images build with current master the postinsts for first run on
target are broken. Looking into

'meta/recipes-devtools/run-postinsts/run-postinsts/run-postinsts.service'

I would expect

'/etc/*-postinsts'

in the image created for packets creating

 '<package>.postinst returned 1, marking as unpacked only,
configuration required on target.'

in log.do_rootfs. I grepped around but could not find the place
creating the files '/etc/*-postinsts'. Where are these files supposed
to be created?

Meanwhile I'll start a build with working configuration to find out
where they are created...

Andreas