last: fix uninitialized length

length was unset when using "last --time-format=iso"

Signed-off-by: Ruediger Meier <ruediger.meier@ga-group.nl>

diff --git a/login-utils/last.c b/login-utils/last.c
index 7848dd0da32cbb46942577b02bebffb5b3e707aa..7029963cc151fc278767f07c4099dab900638689 100644 (file)
--- a/login-utils/last.c
+++ b/login-utils/last.c
@@ -434,9 +434,10 @@ static int list(const struct last_control *ctl, struct utmp *p, time_t t, int wh
 
        epoch = time(NULL);
        if (t == epoch) {
-               if (ctl->fulltime)
+               if (ctl->fulltime) {
                        sprintf(logouttime, "  still running");
-               else {
+                       length[0] = 0;
+               } else {
                        sprintf(logouttime, "  still");
                        sprintf(length, "running");
                }