mongodb/mongo — pull request #613 by mwhudson (2014-01-22 22:33:18+00:00)
Title: Ensure LexNumCmp::cmp only returns 1, -1 or 0

strncmp's documentation says:

It returns an integer less than, equal to, or greater than
zero if s1 is found, respectively, to be less than, to match,
or be greater than s2.

LexNumCmp::cmp is tested as returning only -1, 1 or 0 but returns the
return value of strncmp directly. This changes it to clamp the return
value to -1, 1 or 0.

This was another test failure observed on aarch64.