Add a basic test case for git send-email, and fix some real bugs discovered.

diff --git a/Documentation/git-check-ref-format.txt b/Documentation/git-check-ref-format.txt
index 636e9516b09674d8d40516e1015931cacc54f210..3ea720dd005f7a9b4a66a419cf5438a3a7d0fa8b 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
@@ -43,6 +45,8 @@ expressions (see gitlink:git-rev-parse[1]).  Namely:
 
 . colon `:` is used as in `srcref:dstref` to mean "use srcref\'s
   value and store it in dstref" in fetch and push operations.
+  It may also be used to select a specific object such as with
+  gitlink:git-cat-file[1] "git-cat-file blob v1.3.3:refs.c".
 
 
 GIT