On Thu, 26 Apr 2018 16:11:50 -0700
Elijah Newren [off-list ref] wrote:

Patch looks fine, but it's hard for me not to notice a separate issue
in this area independent of your series: I'm curious if we should
document that the value of 0 is special here (as per Jonathan Tan's
commit 89973554b52c ("diffcore-rename: make diff-tree -l0 mean
-l<large>", 2017-11-29)), and doesn't actually drop the limit to 0.
cc'ing Jonathan Tan for his thoughts.

Documenting that the value of 0 is special does make sense to me. I
think this patch can go in as-is, though - it is already an improvement.