[MINOR] Remove unnecessary spaces in `include_example.rb`
[MINOR] Remove unnecessary spaces in `include_example.rb`

Author: Yu ISHIKAWA <yuu.ishikawa@gmail.com>

Closes #9960 from yu-iskw/minor-remove-spaces.

(cherry picked from commit 0dee44a6646daae0cc03dbc32125e080dff0f4ae)
Signed-off-by: Andrew Or <02e0a999c50b1f88df7a8f5a04e1b76b35ea6a88@databricks.com>

haowu80s/spark,haowu80s/spark,haowu80s/spark,haowu80s/spark,haowu80s/spark,haowu80s/spark