I think it would read better to leave the first it out...or the second. :-)
@smichr this is my first pull request here, can you tell me why is the Travis CI build failing?
rebase pr and fixup the last commit:
git chechout master
git checkout your_branch
git rebase -i master
git push -f github your_branch
fix docstring of is_zero()
update docstring is_zero
huh, I guess "resolves" is a valid verb to close an issue.
And it wasn't even in the commit messages.