Typos from ccache history (#1075)

* Add preprocesor->preprocessor

* Add doesnexist->doesntexist

* Add idetifies->identifies

* Add exceptins->exceptions

* Add iinclude->include

* Add semding->sending

* Add statitics->statistics

* Add arbitraryily->arbitrarily

* Fix doesnexist

* Fix excepting

* Add statitic->statistic