add documentation for update-index --unresolve

diff --git a/Documentation/git-check-ref-format.txt b/Documentation/git-check-ref-format.txt
index 636e9516b09674d8d40516e1015931cacc54f210..7dc1bdb6ef62f1325f8cf0567aa65c56728522ec 100644 (file)
--- a/Documentation/git-check-ref-format.txt
+++ b/Documentation/git-check-ref-format.txt
@@ -3,7 +3,7 @@ git-check-ref-format(1)
 
 NAME
 ----
-git-check-ref-format - Make sure ref name is well formed.
+git-check-ref-format - Make sure ref name is well formed
 
 SYNOPSIS
 --------
@@ -26,13 +26,15 @@ imposes the following rules on how refs are named:
 
 . It cannot have ASCII control character (i.e. bytes whose
   values are lower than \040, or \177 `DEL`), space, tilde `~`,
-  caret `{caret}`, or colon `:` anywhere;
+  caret `{caret}`, colon `:`, question-mark `?`, asterisk `*`,
+  or open bracket `[` anywhere;
 
 . It cannot end with a slash `/`.
 
 These rules makes it easy for shell script based tools to parse
-refnames, and also avoids ambiguities in certain refname
-expressions (see gitlink:git-rev-parse[1]).  Namely:
+refnames, pathname expansion by the shell when a refname is used
+unquoted (by mistake), and also avoids ambiguities in certain
+refname expressions (see gitlink:git-rev-parse[1]).  Namely:
 
 . double-dot `..` are often used as in `ref1..ref2`, and in some
   context this notation means `{caret}ref1 ref2` (i.e. not in