- You need at least one <commit>. Specifying more than one
- <commit> obviously means you are trying an Octopus.
+ Specifying more than one commit will create a merge with
+ more than two parents (affectionately called an Octopus merge).
++
+If no commit is given from the command line, and if `merge.defaultToUpstream`
+configuration variable is set, merge the remote tracking branches
+that the current branch is configured to use as its upstream.
+See also the configuration section of this manual page.