$ hg log -r 2:4 changeset: user: Bryan O'Sullivan <bos@serpentine.com> summary: Introduce a typo into hello.c. changeset: user: Bryan O'Sullivan <bos@serpentine.com> summary: Get make to generate the final binary from a .o file. changeset: tag: tip user: Bryan O'Sullivan <bos@serpentine.com> summary: Trim comments.