repobrowse: simplify command generation for git commands

This shortens the code quite a bit at a negligible performance cost,
and the diffstat agrees.

1 files changed, 1 insertions, 2 deletions

diff --git a/lib/PublicInbox/RepobrowseGitTree.pm b/lib/PublicInbox/RepobrowseGitTree.pm
index a2e38017..c242fd1a 100644
--- a/lib/PublicInbox/RepobrowseGitTree.pm
+++ b/lib/PublicInbox/RepobrowseGitTree.pm
@@ -189,8 +189,7 @@ sub git_tree_sed ($) {
 sub git_tree_show {
         my ($req, $hex, $q) = @_;
         my $git = $req->{repo_info}->{git};
-        my $cmd = [ 'git', "--git-dir=$git->{git_dir}", qw(ls-tree -l -z),
-                $git->abbrev, $hex ];
+        my $cmd = $git->cmd(qw(ls-tree -l -z), $git->abbrev, $hex);
         my $rdr = { 2 => $git->err_begin };
         my $qsp = PublicInbox::Qspawn->new($cmd, undef, $rdr);
         my $t = cur_path($req, $q);