Update update-config.py

Author: thm-unix

usr/share/plainDE/tools/update-config.py

@@ -16,7 +16,7 @@
         defaultConfig = json.load(cfgReader)
 
     for entry in defaultConfig:
-        if not entry.startswith('panel')
+        if not entry.startswith('panel'):
             if entry not in config:
                 config[entry] = defaultConfig[entry]
             elif not isinstance(config[entry], type(defaultConfig[entry])):