mark force-finished log items when app closes

src/logging/BaseLogger.js

@@ -115,6 +115,7 @@ export class BaseLogger {
                 // about the duration of the item, etc ...
                 const serialized = openItem.serialize(new LogFilter(), 0);
                 if (serialized) {
+                    serialized.f = true;    //(f)orced
                     this._persistItem(serialized);
                 }
             } catch (err) {

src/logging/LogItem.js

@@ -139,6 +139,7 @@ export class LogItem {
             // (c)hildren
             item.c = children;
         }
+        // (f)orced can also be set on an item by the logger
         return item;
     }