dh_installinit: Add -ppostgresql-common to work around debhelper #932073.

4 jobs for master in 8 minutes and 2 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #222312
buster
buster

00:04:49

passed #222314
centos7
centos7

00:04:15

passed #222311
sid

00:08:01

passed #222313
stretch
stretch

00:05:14