set_process_name - change the process name
#include <unistd.h>
int set_process_name(const char* name, size_t name_length);
set_process_name() changes the name of the calling process to the string name with length name_length.
In pledged programs, the proc promise is required for this system call.
EFAULT: name is not in readable memory.ENAMETOOLONG: name_length is too long.