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-rw-r--r--sys-utils/dmesg.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sys-utils/dmesg.c b/sys-utils/dmesg.c
index e6819308c..88713d55d 100644
--- a/sys-utils/dmesg.c
+++ b/sys-utils/dmesg.c
@@ -1364,6 +1364,9 @@ int main(int argc, char *argv[])
case DMESG_TIMEFTM_TIME:
ctl.time_fmt = DMESG_TIMEFTM_TIME_DELTA;
break;
+ case DMESG_TIMEFTM_ISO8601:
+ warnx(_("--show-delta is ignored when used together with iso8601 time format"));
+ break;
default:
ctl.time_fmt = DMESG_TIMEFTM_DELTA;
}