Small update

Author: Kazuki Suzuki Przyborowski

neofile.json

@@ -5,14 +5,14 @@
     "NeoFile": {
         "magic": "NeoFile",
         "ver": "001",
-        "delimiter": "\x00",
+        "delimiter": "\u0000",
         "newstyle": "true",
         "extension": ".neo"
     },
     "ArchiveFile": {
         "magic": "ArchiveFile",
         "ver": "001",
-        "delimiter": "\x00",
+        "delimiter": "\u0000",
         "newstyle": "true",
         "extension": ".arc"
     }