esend7881 opened a new pull request #713:
URL: https://github.com/apache/commons-lang/pull/713
I'm not sure if there is reasoning behind `left(null, n)` returning null,
but other `StringUtils` functions tends to return empty strings if their inputs
are null. Likewise, I think it makes sense that `left(null, n)` or `right(null,
n)` returns an empty string instead of returning null. My use case is lambda
logging. I have code like this:
```.java
log.debug("My output (first 256 chars): {}", StringUtils.left(output,
256)::toString);
```
I get an NullPointerExceptions when I do and not properly wrap the call,
etc. So I can't take advantage of both the `left` function as well as lambda
based logging.
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