Services: move sleep to upper layer to improve accuracy

emhttp/plugins/dynamix/scripts/reload_services

@@ -8,9 +8,6 @@ queue(){
   atq | grep -Pom1 '^\d+'
 }
 
-# delayed execution
-sleep ${1:-1}
-
 JOB=$(queue)
 if [[ -n $JOB ]]; then
   atrm $JOB 2>/dev/null

emhttp/plugins/dynamix/scripts/update_services

@@ -15,6 +15,6 @@ else
   log "no queued job present"
 fi
 
-echo "/usr/local/emhttp/webGui/scripts/reload_services ${1:-1}" | at -M now 2>/dev/null
+echo "sleep ${1:-1}; /usr/local/emhttp/webGui/scripts/reload_services" | at -M now 2>/dev/null
 log "queue new job $(queue), wait for ${1:-1}s"
 exit 0