Add debug log

Author: m-aciek

generate.py

@@ -23,7 +23,7 @@
             try:
                 Repo.clone_from(f'[email protected]:python/python-docs-{language}.git', clone_path, depth=1, branch=branch)
             except GitCommandError as e:
-                print(f'failed to clone {language} {branch}')
+                print(f'failed to clone {language} {branch}: {e}')
                 continue
             try:
                 completion = scan_path(clone_path, no_cache=True, hide_reserved=False, api_url='').completion