Merge pull request #1371 from a3f/afa/fix-uuudriver-docs

doc/configuration: UUUDriver: align example with reality

Author: Bastian-Krause

doc/configuration.rst

@@ -2493,15 +2493,15 @@ Implements:
        drivers:
          UUUDriver:
            image: 'mybootloaderkey'
-           cmd: 'spl'
+           script: 'spl'
 
    images:
      mybootloaderkey: 'path/to/mybootloader.img'
 
 Arguments:
   - image (str): optional, key in :ref:`images <labgrid-device-config-images>` containing the path
     of an image to bootstrap onto the target
-  - script (str): run built-in script with ``uuu -b``, called with image as arg0
+  - script (str): optional, run built-in script with ``uuu -b``, called with image as arg0
 
 USBStorageDriver
 ~~~~~~~~~~~~~~~~