/etc/hosts file contains "\n" in output

[Joe Talerico]

The Generated host file contains "\n"

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

# HEAT_HOSTS_START - Do not edit manually within this section!
172.16.0.22 overcloud-controller-0.localdomain overcloud-controller-0
10.2.4.24 overcloud-controller-0.external.localdomain overcloud-controller-0.external
172.16.0.22 overcloud-controller-0.internalapi.localdomain overcloud-controller-0.internalapi
172.18.0.20 overcloud-controller-0.storage.localdomain overcloud-controller-0.storage
172.19.0.23 overcloud-controller-0.storagemgmt.localdomain overcloud-controller-0.storagemgmt
172.17.0.14 overcloud-controller-0.tenant.localdomain overcloud-controller-0.tenant
192.0.2.20 overcloud-controller-0.management.localdomain overcloud-controller-0.management
192.0.2.20 overcloud-controller-0.ctlplane.localdomain overcloud-controller-0.ctlplane
\n172.16.0.18 overcloud-controller-1.localdomain overcloud-controller-1
10.2.4.20 overcloud-controller-1.external.localdomain overcloud-controller-1.external
172.16.0.18 overcloud-controller-1.internalapi.localdomain overcloud-controller-1.internalapi
172.18.0.18 overcloud-controller-1.storage.localdomain overcloud-controller-1.storage
172.19.0.19 overcloud-controller-1.storagemgmt.localdomain overcloud-controller-1.storagemgmt
172.17.0.21 overcloud-controller-1.tenant.localdomain overcloud-controller-1.tenant
192.0.2.18 overcloud-controller-1.management.localdomain overcloud-controller-1.management
192.0.2.18 overcloud-controller-1.ctlplane.localdomain overcloud-controller-1.ctlplane
\n172.16.0.11 overcloud-controller-2.localdomain overcloud-controller-2
10.2.4.18 overcloud-controller-2.external.localdomain overcloud-controller-2.external
172.16.0.11 overcloud-controller-2.internalapi.localdomain overcloud-controller-2.internalapi
172.18.0.14 overcloud-controller-2.storage.localdomain overcloud-controller-2.storage
172.19.0.20 overcloud-controller-2.storagemgmt.localdomain overcloud-controller-2.storagemgmt
172.17.0.12 overcloud-controller-2.tenant.localdomain overcloud-controller-2.tenant
192.0.2.10 overcloud-controller-2.management.localdomain overcloud-controller-2.management
192.0.2.10 overcloud-controller-2.ctlplane.localdomain overcloud-controller-2.ctlplane

172.16.0.23 overcloud-compute-0.localdomain overcloud-compute-0
192.0.2.15 overcloud-compute-0.external.localdomain overcloud-compute-0.external
172.16.0.23 overcloud-compute-0.internalapi.localdomain overcloud-compute-0.internalapi
172.18.0.15 overcloud-compute-0.storage.localdomain overcloud-compute-0.storage
192.0.2.15 overcloud-compute-0.storagemgmt.localdomain overcloud-compute-0.storagemgmt
172.17.0.20 overcloud-compute-0.tenant.localdomain overcloud-compute-0.tenant
192.0.2.15 overcloud-compute-0.management.localdomain overcloud-compute-0.management
192.0.2.15 overcloud-compute-0.ctlplane.localdomain overcloud-compute-0.ctlplane

172.18.0.13 overcloud-cephstorage-0.localdomain overcloud-cephstorage-0
192.0.2.13 overcloud-cephstorage-0.external.localdomain overcloud-cephstorage-0.external
192.0.2.13 overcloud-cephstorage-0.internalapi.localdomain overcloud-cephstorage-0.internalapi
172.18.0.13 overcloud-cephstorage-0.storage.localdomain overcloud-cephstorage-0.storage
172.19.0.18 overcloud-cephstorage-0.storagemgmt.localdomain overcloud-cephstorage-0.storagemgmt
192.0.2.13 overcloud-cephstorage-0.tenant.localdomain overcloud-cephstorage-0.tenant
192.0.2.13 overcloud-cephstorage-0.management.localdomain overcloud-cephstorage-0.management
192.0.2.13 overcloud-cephstorage-0.ctlplane.localdomain overcloud-cephstorage-0.ctlplane
\n172.18.0.17 overcloud-cephstorage-1.localdomain overcloud-cephstorage-1
192.0.2.110 overcloud-cephstorage-1.external.localdomain overcloud-cephstorage-1.external
192.0.2.110 overcloud-cephstorage-1.internalapi.localdomain overcloud-cephstorage-1.internalapi
172.18.0.17 overcloud-cephstorage-1.storage.localdomain overcloud-cephstorage-1.storage
172.19.0.11 overcloud-cephstorage-1.storagemgmt.localdomain overcloud-cephstorage-1.storagemgmt
192.0.2.110 overcloud-cephstorage-1.tenant.localdomain overcloud-cephstorage-1.tenant
192.0.2.110 overcloud-cephstorage-1.management.localdomain overcloud-cephstorage-1.management
192.0.2.110 overcloud-cephstorage-1.ctlplane.localdomain overcloud-cephstorage-1.ctlplane

[Joe Talerico (jtaleric)]

Seems to be os-collect-config

Mar 2 14:43:34 host-192-0-2-110 os-collect-config: \n172.16.0.71 overcloud-baremetal-37.localdomain overcloud-baremetal-37

[Emilien Macchi (emilienm)]

This is an automated cleanup. This bug report has been closed because it
is older than 18 months and there is no open code change to fix this.
After this time it is unlikely that the circumstances which lead to
the observed issue can be reproduced.

If you can reproduce the bug, please:
* reopen the bug report (set to status "New")
* AND add the detailed steps to reproduce the issue (if applicable)
* AND leave a comment "CONFIRMED FOR: <RELEASE_NAME>"
  Only still supported release names are valid (FUTURE, PIKE, QUEENS, ROCKY, STEIN).
  Valid example: CONFIRMED FOR: FUTURE