top: some idiot broke 'idle' mode with u/U 'exclusion'

This patch fixes the single stinkin' source line which
was responsible for breaking the top idle-mode toggle.

Without this change, either 'u' or 'U' must be invoked
just once before the 'i' command would show something.

(yes, everything's perfectly justified once again but)
(i'm not very happy over the need for this damn patch)

Reference(s):
commit d04297843f

Signed-off-by: Jim Warner <james.warner@comcast.net>

top/top.c

@@ -1316,7 +1316,7 @@ static const char *user_certify (WIN_t *q, const char *str, char typ) {
 static inline int user_matched (WIN_t *q, const proc_t *p) {
    switch(q->usrseltyp) {
       case 0:                                    // uid selection inactive
-         return q->usrselflg;
+         return 1;
       case 'U':                                  // match any uid
          if (p->ruid == q->usrseluid) return q->usrselflg;
          if (p->suid == q->usrseluid) return q->usrselflg;