git: Sort branch by committerdate

git/.gitconfig

@@ -9,6 +9,8 @@
 		--format='%(HEAD) %(color:bold green)%(committerdate:relative)%(color:reset)|%(color:yellow)%(refname:short)%(color:reset)|%(subject)' \
 		| head -n ${1:-15} | column -ts'|'; }; \
 		rb"
+[branch]
+	sort = -committerdate
 [blame]
 	# Mark any lines that have had a commit skipped using --ignore-rev with a `?`
 	markIgnoredLines = true