message: Remove binary mode
  Realized I could actually test this fully locally using:
  vpython3 roll_deps.py --dry-run -i
  No-Try: True
  Cr-Commit-Position: refs/heads/main@{#36051}
diff: @@ -449,8 +449,8 @@ def CalculateChangedClang(new_cr_rev):
  return match.group(1)
  raise RollError('Could not parse Clang revision!')
  - with open(CLANG_UPDATE_SCRIPT_LOCAL_PATH, 'rb') as f:
  - current_lines = f.readlines().decode('utf-8')
  + with open(CLANG_UPDATE_SCRIPT_LOCAL_PATH, 'r') as f:
  + current_lines = f.readlines()
  current_rev = GetClangRev(current_lines)
  new_clang_update_py = ReadRemoteCrFile(CLANG_UPDATE_SCRIPT_URL_PATH,
  