Double-check filtering of final strings in codegen

[neubig]

The results of filtering final strings in codegen is a little bit buggy (I made a temporary patch to get results quickly, but it should be fixed permanently).

gemini-benchmark/benchmarking/Code/run_code.py

Lines 126 to 130 in fe7a80c

	# Strip the trailing English text
	predictions = [
	re.sub(r"(.)\n\n[A-Z].*", r"\1", x)
	for x in predictions
	]