git/Documentation: fix SYNOPSIS style bugs

This trivial patch fixes SYNOPSIS style bugs.

Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

Documentation/git-archimport.txt

@@ -9,7 +9,7 @@ git-archimport - Import an Arch repository into git
 SYNOPSIS
 --------
 [verse]
-`git-archimport` [-h] [-v] [-o] [-a] [-f] [-T] [-D depth] [-t tempdir]
+'git-archimport' [-h] [-v] [-o] [-a] [-f] [-T] [-D depth] [-t tempdir]
                <archive/branch> [ <archive/branch> ]
 
 DESCRIPTION

Documentation/git-fetch-pack.txt

@@ -8,7 +8,7 @@ git-fetch-pack - Receive missing objects from another repository.
 
 SYNOPSIS
 --------
-git-fetch-pack [-q] [-k] [--exec=<git-upload-pack>] [<host>:]<directory> [<refs>...]
+'git-fetch-pack' [-q] [-k] [--exec=<git-upload-pack>] [<host>:]<directory> [<refs>...]
 
 DESCRIPTION
 -----------

Documentation/git-pack-redundant.txt

@@ -8,7 +8,7 @@ git-pack-redundant - Program used to find redundant pack files.
 
 SYNOPSIS
 --------
-'git-pack-redundant [ --verbose ] [ --alt-odb ] < --all | .pack filename ... >'
+'git-pack-redundant' [ --verbose ] [ --alt-odb ] < --all | .pack filename ... >
 
 DESCRIPTION
 -----------

Documentation/git-shell.txt

@@ -8,7 +8,7 @@ git-shell - Restricted login shell for GIT over SSH only
 
 SYNOPSIS
 --------
-'git-shell -c <command> <argument>'
+'git-shell' -c <command> <argument>
 
 DESCRIPTION
 -----------

Documentation/git-shortlog.txt

@@ -8,7 +8,7 @@ git-shortlog - Summarize 'git log' output.
 
 SYNOPSIS
 --------
-'git-log --pretty=short | git shortlog'
+git-log --pretty=short | 'git-shortlog'
 
 DESCRIPTION
 -----------

Documentation/git-show-branch.txt

@@ -8,7 +8,7 @@ git-show-branch - Show branches and their commits.
 SYNOPSIS
 --------
 [verse]
-git-show-branch [--all] [--heads] [--tags] [--topo-order] [--current]
+'git-show-branch' [--all] [--heads] [--tags] [--topo-order] [--current]
 		[--more=<n> | --list | --independent | --merge-base]
 		[--no-name | --sha1-name] [<rev> | <glob>]...
 

Documentation/git-update-ref.txt

@@ -7,7 +7,7 @@ git-update-ref - update the object name stored in a ref safely
 
 SYNOPSIS
 --------
-`git-update-ref` <ref> <newvalue> [<oldvalue>]
+'git-update-ref' <ref> <newvalue> [<oldvalue>]
 
 DESCRIPTION
 -----------

Documentation/git-var.txt

@@ -8,7 +8,7 @@ git-var - Print the git users identity
 
 SYNOPSIS
 --------
-git-var [ -l | <variable> ]
+'git-var' [ -l | <variable> ]
 
 DESCRIPTION
 -----------