properly detect the lack of high resolution date on busybox systems

diff --git a/plugins.d/loopsleepms.sh.inc b/plugins.d/loopsleepms.sh.inc
index 00f894b48dc666c151c25e382e511137d108621f..6de93043c93a5e6823bbfc2aced0fcb69ec0224d 100644 (file)
--- a/plugins.d/loopsleepms.sh.inc
+++ b/plugins.d/loopsleepms.sh.inc
@@ -13,6 +13,7 @@ fi
 now_ms=
 LOOPSLEEPMS_HIGHRES=1
 test "$($LOOPSLEEP_DATE +%N)" = "%N" && LOOPSLEEPMS_HIGHRES=0
+test -z "$($LOOPSLEEP_DATE +%N)"     && LOOPSLEEPMS_HIGHRES=0
 current_time_ms_from_date() {
     if [ $LOOPSLEEPMS_HIGHRES -eq 0 ]
     then