capng_capability_to_name - convert capability integer to text
const char *capng_capability_to_name(unsigned int capability);
capng_capabilityi_to_name will take the integer being passed and look
it up to see what its text string representation would be. The integer
being input must be in the valid range defined in linux/capabiliy.h.
The string that is output is the same as the define text from
linux/capabiliy.h with the CAP_ prefix removed and lower case. This is
useful for taking integer representation and converting it to something
more user friendly for display.
This returns a NULL pointer on failure and the correct string