Github user ouyangxiaochen commented on the issue:
https://github.com/apache/spark/pull/17628
I tried to serach the instance of `var foo = "string"` with the RegEx `var
[a-z|A-Z] = "*` in whole project and there are 740 of them. The usage of them
are almost reasonable.
As @viirya commented above, this is very old code. maybe no committer
attention it . @srowen
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