zpool create -n summary fails to mention spares specified on the command line

[gdevenyi]

System information

Type	Version/Name
Distribution Name	Ubuntu
Distribution Version	20.04.1
Linux Kernel	5.4.0-51-generic
Architecture	x86_64
ZFS Version	0.8.5-1
SPL Version	0.8.5-1

Describe the problem you're observing

zpool create -n fails to mention spares in pool summary

Describe how to reproduce the problem

Create a pool such as:
zpool create -n tank raidz2 sda sdb sdc sdd sde spare sdf

Output:

would create 'tank' with the following layout:

        tank
          raidz2
            sda
			sdb
			sdc
			sdd
			sde

The pool summary fails to mention the spares specified on the command line

Include any warning/errors/backtraces from the system logs

NA