Github user kinow commented on the issue:
https://github.com/apache/commons-lang/pull/311
Oh, good point. There's the
[CONTRIBUTING.md](https://github.com/apache/commons-lang/blob/master/CONTRIBUTING.md).
There are several links in that doc too, apologize for not having a shorter
version.
The tabs/spaces is mentioned at the first link under *Additional
Resources*, but there are heaps of other useful information in there. Hopefully
not too different from other ASF projects, so you can probably filter through
90% or more of the contents in those files, and just recognize one of two
differences in the way [lang]/Commons expects patches and pull requests.
Ta
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