aggregation

In many places in Gaffer, correct logging string formatting is used:
https://github.com/gchq/Gaffer/blob/fb63fc25be2f01d6476d1010780500cb0856b6c4/store-implementation/accumulo-store/src/main/java/uk/gov/gchq/gaffer/accumulostore/operation/hdfs/handler/AddElementsFromHdfsHandler.java#L254

However, in some places, string concatenation is incorrectly used instead:
https://github.com/gchq/Gaffer/

At the moment, the string literal parser is naive. For instance, it doesn't handle escape sequences properly. nom has an example of a more robust string literal parser, so it can be adapted to suit pq use cases. However, the li

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You can start your open source contribution in this repo.

You can add a few MySQL Syntax and a two-line explanation of what it does!

For a faster merge please mention me in the comments.

Making a pull request by just correcting the typo will not be accepted!