It is indeed a bug fix, not a typo.
The other thing I did was to clean up the code that builds the return value by using unshift. I no longer needed a counting loop, so I removed the counter variable ("i") and replaced the counting loop with a while loop (implemented as a for loop). "temp" was a bad name — even i, j, etc would be better since temp holds an index — so I renamed it to "i".
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