install/56303: On a fresh installation, /tmp on sparc64 is not sticky

[roland.illig%gmx.de@localhost]

>Number:         56303
>Category:       install
>Synopsis:       On a fresh installation, /tmp on sparc64 is not sticky
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    install-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jul 11 17:10:01 +0000 2021
>Originator:     Roland Illig
>Release:        9.99.86
>Organization:
>Environment:
>Description:
Several releng tests for sparc64 are failing because they cannot create files in /tmp. Andreas Gustafsson already found out:

Immediately after a fresh install of -current/sparc64:

  # ls -al /tmp
  total 4
  drwxr-xr-x   2 root  wheel  512 Jul 10 12:54 .
  drwxr-xr-x  20 root  wheel  512 Jul 10 11:25 ..

cf. i386:

  # ls -al /tmp
  total 4
  drwxrwxrwt   2 root  wheel  512 Jul 11 13:18 .
  drwxr-xr-x  20 root  wheel  512 Jul 11 13:17 ..

In both cases, /tmp is on the root file system, not tmpfs.

>How-To-Repeat:

>Fix: