Documentation: quote {non-attributes} for asciidoc

Asciidoc treats {foo} as an attribute to be substituted; if
'foo' doesn't exist as an attribute, then the entire line
gets dropped. When the literal {foo} is desired, \{foo} is
required.

The exceptions to this rule are:
  - inside literal blocks
  - if the 'foo' contains non-alphanumeric characters (e.g.,
    {foo|bar} is assumed not to be an attribute)

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-branch.txt

@@ -56,7 +56,7 @@ OPTIONS
 -l::
 	Create the branch's ref log.  This activates recording of
 	all changes to made the branch ref, enabling use of date
-	based sha1 expressions such as "<branchname>@{yesterday}".
+	based sha1 expressions such as "<branchname>@\{yesterday}".
 
 -f::
 	Force the creation of a new branch even if it means deleting

Documentation/git-checkout.txt

@@ -64,7 +64,7 @@ OPTIONS
 -l::
 	Create the new branch's ref log.  This activates recording of
 	all changes to made the branch ref, enabling use of date
-	based sha1 expressions such as "<branchname>@{yesterday}".
+	based sha1 expressions such as "<branchname>@\{yesterday}".
 
 -m::
 	If you have local modifications to one or more files that

Documentation/git-receive-pack.txt

@@ -48,8 +48,8 @@ standard input of the hook will be one line per ref to be updated:
 The refname value is relative to $GIT_DIR; e.g. for the master
 head this is "refs/heads/master".  The two sha1 values before
 each refname are the object names for the refname before and after
-the update.  Refs to be created will have sha1-old equal to 0{40},
-while refs to be deleted will have sha1-new equal to 0{40}, otherwise
+the update.  Refs to be created will have sha1-old equal to 0\{40},
+while refs to be deleted will have sha1-new equal to 0\{40}, otherwise
 sha1-old and sha1-new should be valid objects in the repository.
 
 This hook is called before any refname is updated and before any
@@ -71,7 +71,7 @@ The refname parameter is relative to $GIT_DIR; e.g. for the master
 head this is "refs/heads/master".  The two sha1 arguments are
 the object names for the refname before and after the update.
 Note that the hook is called before the refname is updated,
-so either sha1-old is 0{40} (meaning there is no such ref yet),
+so either sha1-old is 0\{40} (meaning there is no such ref yet),
 or it should match what is recorded in refname.
 
 The hook should exit with non-zero status if it wants to disallow
@@ -96,8 +96,8 @@ The refname value is relative to $GIT_DIR; e.g. for the master
 head this is "refs/heads/master".  The two sha1 values before
 each refname are the object names for the refname before and after
 the update.  Refs that were created will have sha1-old equal to
-0{40}, while refs that were deleted will have sha1-new equal to
-0{40}, otherwise sha1-old and sha1-new should be valid objects in
+0\{40}, while refs that were deleted will have sha1-new equal to
+0\{40}, otherwise sha1-old and sha1-new should be valid objects in
 the repository.
 
 Using this hook, it is easy to generate mails describing the updates

Documentation/git-rev-list.txt

@@ -284,9 +284,9 @@ excluded from the output.
 +
 With '\--pretty' format other than oneline (for obvious reasons),
 this causes the output to have two extra lines of information
-taken from the reflog.  By default, 'commit@{Nth}' notation is
+taken from the reflog.  By default, 'commit@\{Nth}' notation is
 used in the output.  When the starting commit is specified as
-'commit@{now}', output also uses 'commit@{timestamp}' notation
+'commit@{now}', output also uses 'commit@\{timestamp}' notation
 instead.  Under '\--pretty=oneline', the commit message is
 prefixed with this information on the same line.