fix(core): update

ts/smarttime.classes.cronmanager.ts

@@ -1,5 +1,6 @@
 import * as plugins from './smarttime.plugins';
 import { CronJob } from './smarttime.classes.cronjob';
+import { getMilliSecondsAsHumanReadableString } from './smarttime.units';
 
 export class CronManager {
   public executionTimeout: plugins.smartdelay.Timeout<void>;
@@ -47,16 +48,19 @@ export class CronManager {
             }
           }
           if (nextRunningCronjob) {
-            this.executionTimeout = new plugins.smartdelay.Timeout(nextRunningCronjob.getTimeToNextExecution());
+            this.executionTimeout = new plugins.smartdelay.Timeout(
+              nextRunningCronjob.getTimeToNextExecution()
+            );
             console.log(
-              `Next CronJob scheduled in ${this.executionTimeout.getTimeLeft()} milliseconds`
+              `Next CronJob scheduled in ${getMilliSecondsAsHumanReadableString(
+                this.executionTimeout.getTimeLeft()
+              )}`
             );
           } else {
             this.executionTimeout = new plugins.smartdelay.Timeout(1000);
             console.log('no cronjobs specified! Checking again in 1 second');
           }
-          
-          
+
           await this.executionTimeout.promise;
         } while (this.status === 'started');
       };