Update kaitai plugin listing entry to remove subdir (since it moved);…

… generate error when content is missing from fetched plugin url

generate_index.py

@@ -120,7 +120,9 @@ def getPluginJson(plugin, shortUrls):
     else:
         pluginjson = f"{projectUrl}/contents/plugin.json?ref={plugin['tag']}"
     try:
-        content = getfile(pluginjson).json()['content']
+        if (content := getfile(pluginjson).json().get("content")) is None:
+            print(f"Unable to get content from {pluginjson}")
+            return None
         try:
             data = json.loads(base64.b64decode(content))
         except:

listing.json

@@ -25,8 +25,7 @@
     },
     {
         "name": "Vector35/kaitai",
-        "auto_update": true,
-        "subdir": "plugin"
+        "auto_update": true
     },
     {
         "name": "Vector35/snippets",