bin/56014: systat vm reports "1 users" after ^Z, fg.

[hashikaw%mail.ru@localhost]

>Number:         56014
>Category:       bin
>Synopsis:       systat vm reports "1 users" after ^Z, fg.
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Feb 23 14:55:00 +0000 2021
>Originator:     Kouichi Hashikawa
>Release:        NetBSD-9.99.80
>Organization:
>Environment:
NetBSD 9.99.80 (GENERIC64) #0: Sat Feb 20 22:18:32 UTC 2021
 	mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/evbarm/compile/GENERIC64

>Description:
systat vm reports "1 users" after ^Z, fg.

>How-To-Repeat:

>Fix:
--- src/usr.bin/systat/vmstat.c-dist    2020-03-02 18:50:12.000000000 +0900
+++ src/usr.bin/systat/vmstat.c 2021-02-23 14:03:50.087970983 +0900
@@ -725,19 +725,16 @@
 static int
 ucount(void)
 {
-       static int onusers = -1;
        int nusers = 0;
        struct utmpentry *ehead;
 
        nusers = getutentries(NULL, &ehead);
 
-       if (nusers != onusers) {
-               if (nusers == 1)
-                       mvprintw(STATROW, STATCOL + 8, " ");
-               else
-                       mvprintw(STATROW, STATCOL + 8, "s");
-       }
-       onusers = nusers;
+       if (nusers == 1)
+               mvprintw(STATROW, STATCOL + 8, " ");
+       else
+               mvprintw(STATROW, STATCOL + 8, "s");
+
        return (nusers);
 }