Merge pull request #68 from log4js-node/update-date-format

chore(deps): updated date-format to 3.0.0

Author: lamweili

package.json

@@ -37,7 +37,7 @@
     "should": "^13.2.3"
   },
   "dependencies": {
-    "date-format": "^2.1.0",
+    "date-format": "^3.0.0",
     "debug": "^4.1.1",
     "fs-extra": "^8.1.0"
   },