message: Fix typo in parameter description
  GitOrigin-RevId:
diff: @@ -32,7 +32,7 @@ endif()
  # SHA256 hash of the file downloaded from URL.
  #
  # Optional parameters:
  -# CMAKE_SUBIDR subdirectory of the downloaded archive where the root
  +# CMAKE_SUBDIR subdirectory of the downloaded archive where the root
  # CMakeLists.txt file for the project is located. Defaults to the root.
  # CMAKE_ARGS any additional argument that should be passed to cmake when
  # configuring the downloaded archive. Defaults to empty.
  