scripted version that appear in 2.5.x maintenance track and older.
(merge b9d6689 js/maint-am-skip-performance-regression later to maint).
+ * The branch descriptions that are set with "git branch --edit-description"
+ option were used in many places but they weren't clearly documented.
+ (merge 561d2b7 po/doc-branch-desc later to maint).
+
* Code cleanups and documentation updates.
(merge 1c601af es/doc-clean-outdated-tools later to maint).
(merge 3581304 kn/tag-doc-fix later to maint).
(merge 1733ed3 ee/clean-test-fixes later to maint).
(merge 5fcadc3 gb/apply-comment-typofix later to maint).
(merge b894d3e mp/t7060-diff-index-test later to maint).
+ (merge d238710 as/config-doc-markup-fix later to maint).