LAB - Merging Branches - 06

This exercise is about merging a branch to a master branch. On doing a git merge <branchnname>, this window pops up asking for a comment to be added. The exercise just says to accept the default comment shown and exit the editor.
Does anyone know how to accept the default comment and exit from this editor? The instructions are too vague to help

I found a workaround and used git merge <branchname> --no-edit for git to accept the auto generated comment

thanks for sharing, ptm!