git-svn: remove redundant porcelain option to rev-list

Change an invocation of git-rev-list(1) to not use --no-color,
git-rev-list(1) will always ignore that option and the --color option,
so there's no need to pass it.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Eric Wong <normalperson@yhbt.net>

git-svn.perl

@@ -3920,7 +3920,7 @@ sub rebuild {
 	my ($base_rev, $head) = ($partial ? $self->rev_map_max_norebuild(1) :
 		(undef, undef));
 	my ($log, $ctx) =
-	    command_output_pipe(qw/rev-list --pretty=raw --no-color --reverse/,
+	    command_output_pipe(qw/rev-list --pretty=raw --reverse/,
 				($head ? "$head.." : "") . $self->refname,
 				'--');
 	my $metadata_url = $self->metadata_url;