bin/56331: Awkward % displays from ``systat vm''

[paul%whooppee.com@localhost]

>Number:         56331
>Category:       bin
>Synopsis:       Awkward % displays from ``systat vm''
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jul 25 14:25:00 +0000 2021
>Originator:     Paul Goyette
>Release:        NetBSD 9.99.87
>Organization:
+--------------------+--------------------------+----------------------+
| Paul Goyette       | PGP Key fingerprint:     | E-mail addresses:    |
| (Retired)          | FA29 0E3B 35AF E8AE 6651 | paul%whooppee.com@localhost    |
| Software Developer | 0786 F758 55DE 53BA 7731 | pgoyette%netbsd.org@localhost  |
|                    |                          | pgoyette99%gmail.com@localhost |
+--------------------+--------------------------+----------------------+
>Environment:
	
	
System: NetBSD speedy.whooppee.com 9.99.87 NetBSD 9.99.87 (SPEEDY 2021-07-23 13:58:03 UTC) #0: Sat Jul 24 00:01:27 UTC 2021 paul%speedy.whooppee.com@localhost:/build/netbsd-local/obj/amd64/sys/arch/amd64/compile/SPEEDY amd64
Architecture: x86_64
Machine: amd64
>Description:
	The ``systat vm'' command displays the following lines that
	include percentages (right-hand portion of display elided to
	improve PR formatting):

	...
	Anon      1850084   1%   zero         
	Exec       957036    %   wired   16348
	File      9646848   7%   inact  174800
	Meta      2681265    %   bufs   512218
	...

The Anon-thru-Meta lines display a "naked" percent sign when the value
is zero - displaying ``0%'' would be much more useful, especially when
_all_ of the values are zero.

	
>How-To-Repeat:
see above
	
>Fix:
	

>Unformatted: