install/54936: + does not extend swap partition in sysinst

[1@-.-]

>Number:         54936
>Category:       install
>Synopsis:       + does not extend swap partition in sysinst
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    install-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Feb 04 23:00:00 +0000 2020
>Originator:     guest01
>Release:        9.0_RC2
>Organization:
-
>Environment:
amd64
>Description:
When you set sizes NetBSD partitions marking swap partition with '+' sign does not extend partition size
>How-To-Repeat:
Boot computer with system installation disk and in sysinst select:
	1	a: Install NetBSD to hard disk
	2	Shall we continue? b: Yes
	3	a: wd0
	4	a: This is the correct geometry
	5	b: Edit the MBR partition table
	6	x: Partition table OK
	7	Do you want to update the bootcode in the Master Boot
		Record to the latest version of the NetBSD bootcode?
                a: Yes
	8	b: Set sizes of NetBSD partitions
	9	You have
		   Size (MB)			Filesystem
		a: 150588		      = /
		b: 0			      = <swap>
		c: 25%			        /tmp (tmpfs)
		d: 0				/usr
		e: 0				/var

	10      b: 0			      = <swap>
	11	Would you like to delete this partition and continue?
                a: Yes
	12	Size for   in MB? [0]: 0+
	13	You have
		   Size (MB)			Filesystem
		a: 150588		      = /
		b: 1 (2038)		      + <swap>
		c: 25%			        /tmp (tmpfs)
		d: 0				/usr
		e: 0				/var
	14      x: Go on.
	15 	You have
		  Start (MB)   End (MB)   Size (MB)  FS type  Flag
		b:    150590          0           0     swap
            Size swap is still 0


>Fix: