Log Message:
Update to 0.15.2. From the changelog:

* Fix warning in ptr macros with pointer to integer cast
* Fix various warnings in Check's unit tests
* Replace gnu_printf with printf in format __attribute__
* Fix warnings from Check's macros: "warning: too many arguments for \ 
format"
* Fix format specifiers that do not match the argument types
* Define CK_ATTRIBUTE_FORMAT for GCC >= 2.95.3, to make use of
  'gnu_printf' format attribute
* Refactor tests to fix signed - unsigned conversions
* Refactor some Check internals to use proper integer types
* Implement missing mutual exclusion for Windows hosts
* Add support for FetchContent in CMake
* Rename CMake project from 'check' to 'Check'
* Fix for checking for wrong tool when building docs in Autotools
* Fix compiler warning with printf format