fix: updated streamroller to fix log rolling when appending

examples/log-rolling-bug.js

@@ -0,0 +1,31 @@
+const log4js = require('../lib/log4js');
+
+log4js.configure({
+  appenders: {
+    handler: {
+      type: 'file',
+      filename: 'logs/handler.log',
+      maxLogSize: 100000,
+      backups: 5,
+      keepFileExt: true,
+      compress: true
+    }
+  },
+  categories: {
+    default: { appenders: ['handler'], level: 'debug' },
+    handler: { appenders: ['handler'], level: 'debug' },
+  }
+});
+
+const logsToTest = [
+  'handler'
+];
+
+const logStartDate = new Date();
+
+const loggers = logsToTest.map(log => log4js.getLogger(log));
+
+// write out a lot
+setInterval(() => {
+  loggers.forEach(logger => logger.info(`TESTING LOGGER!!!!!!${logStartDate}`));
+}, 10);