git request-pull

Generates a pretty email requesting someone to pull commits from your online repository. It's really meant for Linus to pull a whole bunch of already-reviewed changes from a maintainer's integration branch.

The rough equivalent to GitHub's "pull request" is the "patch series", produced by:

    git format-patch

Which lets you provide a "cover letter" (PR description), and formats each commit as a diff that can be quoted inline in an email reply for code review.