Merge branch 'jk/rebase-config-insn-fmt-docfix' into maint

Documentation fix.

* jk/rebase-config-insn-fmt-docfix:
  doc: fix missing "::" in config list

Author: gitster

Documentation/config.txt

@@ -2436,7 +2436,7 @@ rebase.missingCommitsCheck::
 	command in the todo-list.
 	Defaults to "ignore".
 
-rebase.instructionFormat
+rebase.instructionFormat::
 	A format string, as specified in linkgit:git-log[1], to be used for
 	the instruction list during an interactive rebase.  The format will automatically
 	have the long commit hash prepended to the format.