Extra Clang Tools 5 documentation

clang-tidy - modernize-shrink-to-fit

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modernize-shrink-to-fit

Replace copy and swap tricks on shrinkable containers with the shrink_to_fit() method call.

The shrink_to_fit() method is more readable and more effective than the copy and swap trick to reduce the capacity of a shrinkable container. Note that, the shrink_to_fit() method is only available in C++11 and up.

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