RHEL7: Escape code '\S' on the first line of the issue-file (/etc/issue) instead of the Red Hat product name and version

Issue

• It seems the file /etc/issue is not correct on RHEL 7 as below. Prior releases such as RHEL5 or RHEL6 would contain the Red Hat product name and version in the first line. However, on RHEL 7 the first line only contains an \S.

$ cat /etc/issue
\S
Kernel \r on an \m

• Example from RHEL 6:

$ cat /etc/issue
Red Hat Enterprise Linux Server release 6.6 (Santiago)
Kernel \r on an \m

• Example from RHEL 5:

$ cat /etc/issue
Red Hat Enterprise Linux Server release 5.10 (Tikanga)
Kernel \r on an \m