Documentation/git-archimport: document -o, -a, f, -D options

Also, ensure usage help switches are in the same order.

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>

Documentation/git-archimport.txt

@@ -8,7 +8,8 @@ git-archimport - Import an Arch repository into git
 
 SYNOPSIS
 --------
-`git-archimport` [ -h ] [ -v ] [ -T ] [ -t tempdir ] 
+`git-archimport` [ -h ] [ -v ] [ -o ] [ -a ] [ -f ] [ -T ]
+                 [ -D depth ] [ -t tempdir ] 
                  <archive/branch> [ <archive/branch> ]
 
 DESCRIPTION
@@ -63,6 +64,26 @@ OPTIONS
 	Many tags. Will create a tag for every commit, reflecting the commit 
 	name in the Arch repository.
 
+-f::
+	Use the fast patchset import strategy.  This can be significantly
+	faster for large trees, but cannot handle directory renames or
+	permissions changes.  The default strategy is slow and safe.
+
+-o::
+	Use this for compatibility with old-style branch names used by
+	earlier versions of git-archimport.  Old-style branch names
+	were category--branch, whereas new-style branch names are
+	archive,category--branch--version.
+
+-D <depth>::
+	Follow merge ancestry and attempt to import trees that have been
+	merged from.  Specify a depth greater than 1 if patch logs have been
+	pruned.
+
+-a::
+	Attempt to auto-register archives at http://mirrors.sourcecontrol.net
+	This is particularly useful with the -D option.
+
 -t <tmpdir>::
 	Override the default tempdir.
 

git-archimport.perl

@@ -9,7 +9,8 @@
 
 =head1 Invocation
 
-    git-archimport [ -h ] [ -v ] [ -T ] [ -t tempdir ] <archive>/<branch> [ <archive>/<branch> ]
+    git-archimport [ -h ] [ -v ] [ -o ] [ -a ] [ -f ] [ -T ] 
+    	[ -D depth] [ -t tempdir ] <archive>/<branch> [ <archive>/<branch> ]
 
 Imports a project from one or more Arch repositories. It will follow branches
 and repositories within the namespaces defined by the <archive/branch>
@@ -74,7 +75,7 @@ our($opt_h,$opt_f,$opt_v,$opt_T,$opt_t,$opt_D,$opt_a,$opt_o);
 sub usage() {
     print STDERR <<END;
 Usage: ${\basename $0}     # fetch/update GIT from Arch
-       [ -f ] [ -o ] [ -h ] [ -v ] [ -T ] [ -a ] [ -D depth  ] [ -t tempdir ]
+       [ -h ] [ -v ] [ -o ] [ -a ] [ -f ] [ -T ] [ -D depth ] [ -t tempdir ]
        repository/arch-branch [ repository/arch-branch] ...
 END
     exit(1);