This is makeindex, version 2.15 [TeX Live 2017] (kpathsea + Thai support).
Scanning input file BookOfFaces.idx....done (13 entries accepted, 0 rejected).
Sorting entries....done (50 comparisons).
Generating output file BookOfFaces.ind....done (30 lines written, 0 warnings).
Output written in BookOfFaces.ind.
Transcript written in BookOfFaces.ilg.