Clean up CMakeLists.txt files:
- convert all commands to lower case
- remove spaces between commands and parenheses
- remove arguments in elseif, else and endif commands
- fix indentation
Usage:
$ cmake-tidy [-h] [-i] PATH [PATH ...]
Example (single file):
$ cmake-tidy -i CMakeLists.txt
Example (all CMakeLists under working directory):
$ find -name 'CMakeLists.txt' -exec cmake-tidy -i {} \;