Merge topic 'clang-format-prep'

Modules/CMakeCCompilerABI.c

Modules/CMakeCXXCompilerABI.cpp

Modules/CMakeCompilerABI.h

Source/CPack/IFW/cmCPackIFWGenerator.cxx

Source/CPack/IFW/cmCPackIFWInstaller.cxx

Source/CPack/IFW/cmCPackIFWPackage.cxx

Source/CPack/cmCPack7zGenerator.cxx

Source/CPack/cmCPackArchiveGenerator.cxx

Source/CPack/cmCPackBundleGenerator.cxx

Source/CPack/cmCPackComponentGroup.cxx

Source/CPack/cmCPackCygwinBinaryGenerator.cxx

Source/CPack/cmCPackCygwinSourceGenerator.cxx

Source/CPack/cmCPackDebGenerator.cxx

Source/CPack/cmCPackDragNDropGenerator.cxx

Source/CPack/cmCPackGenerator.cxx

Source/CPack/cmCPackGeneratorFactory.cxx

Source/CPack/cmCPackLog.cxx

Source/CPack/cmCPackNSISGenerator.cxx

Source/CPack/cmCPackOSXX11Generator.cxx

Source/CPack/cmCPackPackageMakerGenerator.cxx