format_code.py: fix NameError when --d is specified

[dconeybe]

This PR fixes an apparent copy/paste error in format_code.py in the list_files_from_directory() function where it uses a local variable named line, that doesn't exist. The correct local variable name is filename.

The result of this bug is that when --d is specified as a command-line argument the app crashes with a NameError:

$ python3 scripts/format_code.py --verbose --d firestore/src --r
Searching files in directory: "firestore/src"
Traceback (most recent call last):
  File "scripts/format_code.py", line 276, in <module>
    app.run(main)
  File "site-packages/absl/app.py", line 308, in run
    _run_main(main, args)
  File "site-packages/absl/app.py", line 254, in _run_main
    sys.exit(main(argv))
  File "scripts/format_code.py", line 223, in main
    filenames += directory_search_list_files()
  File "scripts/format_code.py", line 191, in directory_search_list_files
    filenames += list_files_from_directory(directory, FLAGS.r)
  File "scripts/format_code.py", line 168, in list_files_from_directory
    if(FILE_PATHS_TO_IGNORE.match(line)):
NameError: name 'line' is not defined. Did you mean: 'slice'?

[github-actions]

Integration test with FLAKINESS (succeeded after retry)

Requested by @dconeybe on commit 055e879
Last updated: Wed Jun 21 14:13 PDT 2023
View integration test log & download artifacts

Failures	Configs
gma	[TEST] [FLAKINESS] [iOS] [macos] [1/2 ios_device: ios_target] (1 failed tests)   CRASH/TIMEOUT

Add flaky tests to go/fpl-cpp-flake-tracker