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gh-150942: Speed up re.findall and re.sub/subn result building #264208

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gh-150942: Speed up re.findall and re.sub/subn result building

gh-150942: Speed up re.findall and re.sub/subn result building #264208

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Run time

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Job	Run time
DO-NOT-MERGE	4s
Unresolved review	4s
	8s

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