Compare that with the version in GNU Coreutils[1] that is 50+ lines long so that false[2] can be written as:

#define EXIT_STATUS EXIT_FAILURE

#include "true.c"

[1] https://github.com/coreutils/coreutils/blob/master/src/true....

[2] https://github.com/coreutils/coreutils/blob/master/src/false...