Merge branch 'sc/fmt-merge-msg-doc-markup-fix' into maint

Documentation fix.

* sc/fmt-merge-msg-doc-markup-fix:
  Documentation/fmt-merge-msg: fix markup in example

Author: gitster

Documentation/git-fmt-merge-msg.txt

@@ -60,10 +60,10 @@ merge.summary::
 EXAMPLE
 -------
 
---
+---------
 $ git fetch origin master
 $ git fmt-merge-msg --log <$GIT_DIR/FETCH_HEAD
---
+---------
 
 Print a log message describing a merge of the "master" branch from
 the "origin" remote.