cvsserver: always initialize state in argsplit()

Other code assumes that this is initialized, so do it
even if there were no arguments given.

Signed-off-by: Dirk Koopman <djk@tobit.co.uk>
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-cvsserver.perl

@@ -1813,14 +1813,14 @@ sub req_annotate
 # the second is $state->{files} which is everything after it.
 sub argsplit
 {
-    return unless( defined($state->{arguments}) and ref $state->{arguments} eq "ARRAY" );
-
-    my $type = shift;
-
     $state->{args} = [];
     $state->{files} = [];
     $state->{opt} = {};
 
+    return unless( defined($state->{arguments}) and ref $state->{arguments} eq "ARRAY" );
+
+    my $type = shift;
+
     if ( defined($type) )
     {
         my $opt = {};