These are not comments. It means that the pull executed merge which was not fastforward. These are CONFLICTS that are to be resolved manually.
A pull will execute merge if the pulled resources were changed on both sides. If those changes only modify different lines in a given resource, the merge is fastforward and done without the need of human interaction. On the other hand, if the same lines of a resources were changed on both sides, git-merge will keep both variants, and add the conflict markers.