Can't reproduce the findings. I think this is counting all lines ever added across all commits. The current source tree is at 500k lines of C:
$ tokei
C: 492003, C Header: 58547
Total line count at 889658, "code" count at 716316, but 202314 of that is plain text which could signify documentation. It's still a lot, but not even nearly close the headline.
$ tokei C: 492003, C Header: 58547
Total line count at 889658, "code" count at 716316, but 202314 of that is plain text which could signify documentation. It's still a lot, but not even nearly close the headline.