Merge branch 'maint'

* maint:
  Fix typo in 1.6.6.2 release notes
  Re-fix check-ref-format documentation mark-up

Author: gitster

Documentation/RelNotes-1.6.6.2.txt

@@ -1,7 +1,7 @@
 Git v1.6.6.2 Release Notes
 ==========================
 
-Fixes since v1.6.6.2
+Fixes since v1.6.6.1
 --------------------
 
  * recursive merge didn't correctly diagnose its own programming errors,

Documentation/git-check-ref-format.txt

@@ -43,7 +43,7 @@ imposes the following rules on how references are named:
 
 . They cannot contain a sequence `@{`.
 
-. They cannot contain a `\\`.
+. They cannot contain a `\`.
 
 These rules make it easy for shell script based tools to parse
 reference names, pathname expansion by the shell when a reference name is used